# 17.4 Series and Parallel Circuits

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 17.4 Series and Parallel Circuits When multiple resistors are used in a circuit, the total resistance in the circuit must be found before finding the current. Resistors can be combined in a circuit in series or in parallel. Resistors in Series When connected in series, the total resistance,, is equal to R 1 R 3... In series, the total resistance is always larger than any individual resistance. Current in series resistors: In series circuits, charge has only one path through which to flow. Therefore, the current passing through each resistor in series is the same. Potential difference across series resistors: As charge passes through each of the resistors, it loses some energy. This means that there will be a potential difference across each resistor. The sum of all the potential differences equals the potential difference across the battery, assuming negligible resistance in the connecting wires. Resistors in Parallel When connected in parallel, the total resistance,, is equal to R 1 R 3 Don t forget! After finding a common denominator and determining the sum of these fractions, flip over the answer to determine. In parallel circuits, the total resistance is always smaller than any individual resistance. Current in parallel resistors: In parallel circuits, there is more than one possible path and current divides itself according to the resistance of each path. Since current will take the path of least resistance, the smallest resistor will allow the most current through, while the largest resistor will allow the least current through. The sum of the currents in each parallel resistor equals the original current entering the branches. Potential difference in parallel resistors: The potential difference across each of the resistors in a parallel combination is the same. If there are no other resistors in the circuit, it is equal to the potential difference across the battery, assuming negligible resistance in the connecting wires. Direct Current Circuits 219

2 Solved Examples Example 8: Example 9: Find the total resistance of the three resistors connected in series. Solve: R 1 R Find the total resistance of the same three resistors now connected in parallel Solve: R 1 R Example 10: Find the total current passing through the circuit. This circuit contains resistors in parallel that are then combined with a resistor in series. Always begin solving such a resistor combination by working from the inside out. In other words, first determine the equivalent resistance of the two resistors in parallel before combining this total resistance with the one in series. Look first at the parallel combination R 1 4 Now, combine this equivalent resistance with the resistor in series. R To find the current flowing through the circuit, use this total resistance in combination with the potential difference from the battery. Given: V 16 V Unknown: I? R 8 V 16 V Solve: I 2 A R 8 Example 11: Find the current in the 9- resistor. 220 Direct Current Circuits For the parallel branch R 1 6 Combining with the series resistor R

3 Given: V 36 V Unknown: I? R 12 V 36 V Solve: I 3 A R 12 This 3 A is the current through the entire circuit. Use this current to find the potential difference across the parallel combination. Remember, the potential difference across resistors wired in parallel is the same regardless of which path is taken. Because the resistors in parallel have a combined resistance of 6, you find the potential difference across the parallel branch as follows. Given: R 6 Unknown: V? I 3 A Solve: V IR (3 A)(6 ) 18 V Therefore, the potential difference across both the top and the bottom branches is 18 V. Now use this 18-V drop to determine the current in the 9- resistor. Given: V 18 V Unknown: I? R 9 V 18 V Solve: I 2 A R 9 Practice Exercises Exercise 16: Using the diagram, a) find the total resistance in the circuit. b) Find the total current through the circuit. a) R 1 R b) I V/R (10.0 V)/(31 ) 0.32 A A Exercise 17: Using the diagram, a) find the total resistance in the circuit. b) Find the total current through the circuit. a) 1/ 1/R 1 1/ 1/R 3 1/15 1/10 1/6 10/30 b) I V/R (12 V)/(3 ) 4 A A 222 Direct Current Circuits

4 Exercise 18: Using the diagram, a) find the total resistance in the circuit. b) Find the total current through the circuit. a) 1/ 1/R 1 1 1/15 1/10 5/30 6 R b) I V/R (32 V)/(12 ) 2.7 A A Exercise 19: Old-fashioned holiday lights were connected in series across a 120-V household line. a) If a string of these lights consists of 12 bulbs, what is the potential difference across each bulb? b) If the bulbs were connected in parallel, what would be the potential difference across each bulb? Series: (120 V)/(12) 10. V per bulb Parallel: 120 V per bulb 10. V per bulb 120 V per bulb Exercise 20: Before going to work each morning, Gene runs his 18- toaster, 11- electric frying pan, and 14- electric coffee maker, all at the same time. The three are connected in parallel across a 120-V line. a) What is the current through each appliance? b) If a household circuit could carry a maximum current of 15 A, would Gene be able to run all of these appliances at the same time? a) Toaster: I V/R (120 V)/(18 ) 6.7 A Frying Pan: I V/R (120 V)/(11 ) 10.9 A Coffee Maker: I V/R (120 V)/(14 ) 8.6 A b) I T I 1 I 2 I A 10.9 A 8.6 A 26.2 A All three can t run at the same time. 6.7 A; 10.9 A; 8.6 A see above Direct Current Circuits 223

5 Exercise 21: Timmy is playing with a new electronics kit he has received for his birthday. He takes out four resistors with resistances of 15, 20, 20, and 30. a) How would Timmy have to wire the resistors so that they would allow the maximum amount of current to be drawn? Calculate the total resistance in this circuit. b) How must he wire the resistors so that they draw a minimum amount of current? Calculate the total resistance in this circuit. a) Parallel: 1/ 1/R 1 1/ 1/R 3 1/R 4 1/15 1/20 1/20 1/30 12/60 5 b) Series: R 1 R 3 R Exercise 22: Farmer Crockett is preparing tomato seedlings for his spring planting by growing the small plants over five 46- strip heaters wired in parallel. a) How much current does each heater draw from a 120-V line? b) How much current do they draw all together? a) I V/R (120 V)/(46 ) 2.6 A b) 1/ 5(1/R) 5/ I V/R (120 V)/(9.2 ) 13 A 2.6 A 13 A Additional Exercises A-1: A-2: A-3: Otto accidently leaves his automobile headlights on overnight and is unable to start his car in the morning. Each of the two headlights connected in parallel draws 2.00 A of current from the 12.0-V battery. a) If the battery stores J of energy, how long will it take for the headlights to go off? b) Why are the headlights connected in parallel? Officer Moynihan is patrolling his beat with a 4.5-V flashlight whose lightbulb has a resistance of 12. How much current does the flashlight draw? Each night before falling asleep, Linus turns on his electric blanket that is plugged into the 120.-V electrical outlet. A current of 1.20 A flows through the blanket. a) What is the blanket s resistance? b) Does Linus want his electric blanket to have a high resistance or a low resistance? Why? 224 Direct Current Circuits

6 A-4: A-5: A-6: A-7: A-8: A-9: A-10: A-11: Herbert had just suffered a heart attack but he was revived in the hospital emergency room with a device called a defibrillator. (The paddles of a defibrillator supply a short pulse of high voltage to restart the heart.) The defibrillator contains a 20.- F capacitor that releases 0.15 C of charge. a) What is the potential difference between the defribrillator paddles during the discharge? b) Why do you think doctors yell Clear! to the attendants before discharging the defibrillator? Sherm is typing his term paper on a computer that contains a high-speed switch, controlled with a small F speed-up capacitor. What is the current flow created by the capacitor if it discharges every 0.1 s across a potential difference of 5 V? Every Sunday morning Stuart makes breakfast in bed for his wife. However, because the household wires can only carry a maximum current of 15 A from the 120.-V line, it is difficult to run all of the appliances simultaneously without blowing a fuse. What is the most power Stuart may use while cooking, before blowing a fuse? In the previous exercise, a) how much current will Stuart draw if he tries to run the 700.-W toaster and W coffee maker at the same time? b) Will this cause him to blow the fuse? Xiaoyi s aquarium operates for 24.0 h a day and contains a 5.0-W heater, two 20.0-W lightbulbs, and a 35.0-W electric filter. If Xiaoyi pays \$0.100 per kwh for her electricity bill, how much will it cost to maintain the aquarium for 30.0 days? The average power plant, running at full capacity, puts out 500. MW of power. If the power company charges its customers \$0.10 per kwh, what is the revenue brought in by the power plant each day? Horace has invented a unique pair of reading glasses that have two small light bulbs at the bottom wired in series, so that he can see the newspaper when he is reading at night. Each of the bulbs has a resistance of 2.00, and the system runs off a 3.20-V battery. How much current is drawn by Horace s reading glasses? Jay has two 8- stereo speakers wired in series in the front of his car connected to the 4.0-V output of the stereo. a) What is the current through each of the speakers? b) In his garage, Jay finds two more old speakers with resistances of 4 and 16. He wires each in parallel with the 8- combination. What is the new current through the 8- speakers? c) If the loudness of each speaker is proportional to the amount of power used, how has the loudness of the two 8- speakers changed? Direct Current Circuits 225

7 A-12: A-13: A-14: Find a) the total resistance in circuit A below. b) Find the total current through the circuit. Find a) the total resistance in circuit B below. b) Find the total current through the circuit. Find a) the total resistance in circuit C below. b) Find the total current through the circuit. Circuit A Circuit B Circuit C Challenge Exercises for Further Study B-1: B-2: An 800.-W submersible electric heater is put into a 20.0 C hottub until the 50.0-kg of tub water has warmed up to 70.0 C. How long will it take for the heater to heat the tub water? (c water 4187 J/kg C) Find the total current in the circuit in the diagram. B-3: In exercise A-10, the light bulbs are rated for 5 h of use before they burn out. If the battery can supply 5184 J to the circuit, which occurs first, energy depletion in the battery or failure of a bulb? 226 Direct Current Circuits

### PHYSICS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits

PHYSCS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits This experiment is designed to investigate the relationship between current and potential in simple series

### Physics 133: tutorial week 4 Ohm s law, electrical power, emf and internal resistance.

Physics 133: tutorial week 4 Ohm s law, electrical power, emf and internal resistance. 41. The heating element of a clothes drier has a resistance of 11Ïand is connected across a 240V electrical outlet.

### Energy Transfer in a Flash-Light. (Teacher Copy)

Energy Transfer in a Flash-Light (Teacher Copy) Florida Sunshine State Standards Benchmark: SC.B. 1.3.1 AA The student identifies forms of energy and explains that they can be measured and compared. (Also

### STUDY GUIDE: ELECTRICITY AND MAGNETISM

319 S. Naperville Road Wheaton, IL 60187 www.questionsgalore.net Phone: (630) 580-5735 E-Mail: info@questionsgalore.net Fax: (630) 580-5765 STUDY GUIDE: ELECTRICITY AND MAGNETISM An atom is made of three

### CURRENT ELECTRICITY INTRODUCTION TO RESISTANCE, CAPACITANCE AND INDUCTANCE

CURRENT ELECTRICITY INTRODUCTION TO RESI STANCE, CAPACITANCE AND INDUCTANCE P R E A M B L E This problem is adapted from an on-line knowledge enhancement module for a PGCE programme. It is used to cover

### People s Physics Book

The Big Ideas: The name electric current is given to the phenomenon that occurs when an electric field moves down a wire at close to the speed of light. Voltage is the electrical energy density (energy

### I = V/r P = VI. I = P/V = 100 W / 6 V = 16.66 amps. What would happen if you use a 12-volt battery and a 12-volt light bulb to get 100 watts of power?

Volts, Amps and Ohms Measuring Electricity The three most basic units in electricity are voltage (V), current (I) and resistance (r). Voltage is measured in volts, current is measured in amps and resistance

### Switch & Circuit Prototypes

Wire Diagram Switch & Circuit Prototypes The Light-House Build & Blueprint Student Experience Students use circuit schematics to create a wire diagram for their house. Students must get diagram approved

### Voltage Drop (Single-Phase)

Voltage Drop (Single-Phase) To Find: To Find Voltage Drop Formula: 2 x K x L x I V.D. = ------------------- C.M. Variables: C.M. = Circular Mill Area (Chapter 9, Table 8) To Find Voltage Drop Percentage

### 101 Low-Cost /No-Cost. Home Energy-Saving Measures

101 Low-Cost /No-Cost Home Energy-Saving Measures Your Touchstone Energy Cooperative has compiled this list of low-cost / no-cost energy-saving measures to help you better manage your home s energy costs.

### Electronic Circuits Workshop Snap Circuits

Electronic Circuits Workshop Snap Circuits LEARNING GOALS: After the completion of this workshop, students will understand: 1. The basic components of an electronic circuit 2. How these components work

### Electrical Circuit Theory

Electrical Circuit Theory Learning Objectives: 1. Review the basic electrical concepts of voltage, amperage, and resistance. 2. Review the components of a basic automotive electrical circuit. 3. Introduce

### ELECTRIC INSTANTANEOUS WATER HEATER

ELECTRIC INSTANTANEOUS WATER HEATER EPS - 3,5 EPS - 4,4 EPS - 5,5R Please, read and follow the installation and operating instructions carefully, to ensure the long life and reliable operation of this

### in the United States Home fires are a major problem Older Homes Pose an Even Greater Threat Put Into Perspective Electrocutions Can Be Prevented

Home fires are a major problem in the United States Each year, home electrical problems alone account for an estimated 53,600 fires. These fires cause more than 500 deaths, 1,400 injuries, and \$1.4 billion

### HOUSING QUALITY STANDARDS (HQS)

HOUSING QUALITY STANDARDS (HQS) Series 5 Electrical Safety And INSPECTIONS 5.01 ELS Revised 8-17-06 Electricity is Dangerous All electrical repairs should be made by licensed professionals. Touching any

### home energy consumption list A list of electric household appliances, and their operating cost yukonelectrical.com

3 7 home energy consumption list 8 4 A list of electric household appliances, and their operating cost 6 3 9 1 5 9 2 yukonelectrical.com 4 Helping Yukoners make wise electricity choices electricity consumption

### Electrical Resistance Resistance (R)

Electrical Resistance Resistance (R) Any device in a circuit which converts electrical energy into some other form impedes the current. The device which converts electrical energy to heat energy is termed

### 3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit?

1.- What is electricity? 2.- Write down the name of the atom s particles. 3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit?

### Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010. Dr.Prapun Suksompong 1 June 16, 2010

Sirindhorn International Institute of Technology Thammasat University School of Information, Computer and Communication Technology Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010 Dr.Prapun

### in the United States Home fires are a major problem Older Homes Pose an Even Greater Threat Put it into perspective: Electrocutions can be Prevented

Home fires are a major problem in the United States Each year, home electrical problems alone account for an estimated 53,600 fires. These fires cause more than 500 deaths, injure 1,400 people, and account

2 12 2010 PulteGroup, Inc. All Rights Reserved. circuit breakers Circuit breakers protect your home s system from power failure. The wiring in your home is protected by circuit breakers. Circuit breakers,

### COST ESTIMATES FOR USING ELECTRIC AND GAS APPLIANCES 888-427-5632 2/12. Printed on recycled and recyclable paper

COST ESTIMATES FOR USING ELECTRIC AND GAS APPLIANCES Printed on recycled and recyclable paper 2/12 888-427-5632 OVERVIEW Appliances can make up about 20 percent of a home s energy consumption. In this

### Slide 1 / 26. Inductance. 2011 by Bryan Pflueger

Slide 1 / 26 Inductance 2011 by Bryan Pflueger Slide 2 / 26 Mutual Inductance If two coils of wire are placed near each other and have a current passing through them, they will each induce an emf on one

### Diodes have an arrow showing the direction of the flow.

The Big Idea Modern circuitry depends on much more than just resistors and capacitors. The circuits in your computer, cell phone, Ipod depend on circuit elements called diodes, inductors, transistors,

### MODEL 2202IQ (1991-MSRP \$549.00)

F O R T H E L O V E O F M U S I C F O R T H E L O V E O F M U S I C MODEL 2202IQ (1991-MSRP \$549.00) OWNER'S MANUAL AND INSTALLATION GUIDE INTRODUCTION Congratulations on your decision to purchase a LINEAR

### 3 Slot Payphone Controller

5A2 3 Slot Payphone Controller The 3 Slot Payphone -- Part of American History Building a Coin Relay Controller Version S1BX Instruction Manual and Safety Precautions It is very important that for your

### NEW YORK STATE BAR ASSOCIATION. LEGALEase. If You Have An Auto Accident SAMPLE

NEW YORK STATE BAR ASSOCIATION LEGALEase If You Have An Auto Accident If You Have An Auto Accident What should you do if you re involved in an automobile accident in New York? STOP! By law, you are required

### www.rkeducation.co.uk solutions for teaching and learning

Teacher Notes Transistor Astable Project Introduction The aim of this 7 week (2hr lessons) project is to design and manufacture an electronic product based on the transistor astable circuit. The project

### Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.

ch 7 and 16 review Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. The heat released by a burning candle

### EET272 Worksheet Week 9

EET272 Worksheet Week 9 answer questions 1-5 in preparation for discussion for the quiz on Monday. Finish the rest of the questions for discussion in class on Wednesday. Question 1 Questions AC s are becoming

### FIRE SAFETY IN THE HOME

FIRE SAFETY IN THE HOME 2 Did you know? You re four times more likely to die in a fire if you don t have a smoke alarm that works. Around half of home fires are caused by cooking accidents. Two fires a

### Example: Determine the power supplied by each of the sources, independent and dependent, in this circuit:

Example: Determine the power supplied by each of the sources, independent and dependent, in this circuit: Solution: We ll begin by choosing the bottom node to be the reference node. Next we ll label the

### IMPORTANT INSTRUCTIONS & OPERATING MANUAL. Houston 50 Inch Electric Wall Mounted Fireplace Black / White

IMPORTANT INSTRUCTIONS & OPERATING MANUAL Houston 50 Inch Electric Wall Mounted Fireplace Black / White Model Number:MFE5050BK Model Number:MFE5050WH Read these instructions carefully before attempting

### English as a Second Language Podcast www.eslpod.com. ESL Podcast 292 Business Insurance

GLOSSARY to lose control of (something) to no longer be in control of something; to not be able to influence how something moves or happens * When I was driving home last night, I thought I was going to

### THE ELECTRIC HOOKUP. 1. Determine the wattage of various household appliances. 2. Calculate the number of kilowatt-hours used by appliances.

Objectives: The student will do the following: THE ELECTRIC HOOKUP 1. Determine the wattage of various household appliances. 2. Calculate the number of kilowatt-hours used by appliances. 3. Identify the

### Utility independent, or remote, solar electric systems

NCAT Energy Brief Independent Solar Homes Utility independent, or remote, solar electric systems provide electricity for buildings that are not connected to an electric utility. Photovoltaics (PV) have

### High kw Electric Tankless Water Heater Troubleshooting Guide

Technical Service Bulletin High kw Electric Tankless Water Heater Troubleshooting Guide Models: WH17, WH27, WH36 AE115, AE125, (FD108 and higher) DANGER: ELECTRIC SHOCK ELECTRICITY IS EXTREMELY DANGEROUS.

### POWER QUALITY IN YOUR HOME

POWER QUALITY IN YOUR HOME How to ensure the life and reliable operation of your home electronics Electricity provides the power you need to run your home electronic equipment. Sometimes, interference

### Underwater Mini-ROV. Remote Operated Vehicle. Lesson/Activity Workbook. Written by:

Underwater Mini-ROV Remote Operated Vehicle Lesson/Activity Workbook Written by: A WORD ABOUT THIS WORKBOOK Underwater ROV s provide a fun and fascinating way for students to learn the rigor of math and

### W03 Analysis of DC Circuits. Yrd. Doç. Dr. Aytaç Gören

W03 Analysis of DC Circuits Yrd. Doç. Dr. Aytaç Gören ELK 2018 - Contents W01 Basic Concepts in Electronics W02 AC to DC Conversion W03 Analysis of DC Circuits (self and condenser) W04 Transistors and

### CHAPTER 4 UTILITY SYSTEMS ELECTRICAL. Utility Systems Electrical. Main Panel

CHAPTER 4 UTILITY SYSTEMS ELECTRICAL Utility Systems Electrical The electrical supply to your home begins outside, where you will see either an overhead feed and piping down the side of your home or (if

### Touch Screen Technology. Taking apart a tablet

Touch Screen Technology Topics covered: 1) Resistance, Capacitance, Charge, Voltage, and Current 2) Introduction to simple circuits Taking apart a tablet For example, an ipad2 Touchscreen Motherboard Lots

### PHYS 222 Spring 2012 Final Exam. Closed books, notes, etc. No electronic device except a calculator.

PHYS 222 Spring 2012 Final Exam Closed books, notes, etc. No electronic device except a calculator. NAME: (all questions with equal weight) 1. If the distance between two point charges is tripled, the

### Chapter 2: Forms of Energy

Chapter 2: Forms of Energy Goals of Period 2 Section 2.1: To describe the forms of energy Section 2.2: To illustrate conversions from one form of energy to another Section 2.3: To define the efficiency

### 7 Ways To Explode Your Profits as a Tint Professional and Change your Life Forever!

WINDOW FILM CUTTING SYSTEM 7 Ways To Explode Your Profits as a Tint Professional and Change your Life Forever! 2012 Tint Tek The automobile window tinting industry is a highly profitable trade and, for

### NewAir AC-10000E, AC-10000H Portable Air Conditioner Owner s Manual PLEASE READ AND SAVE THESE INSTRUCTIONS

NewAir AC-10000E, AC-10000H Portable Air Conditioner Owner s Manual PLEASE READ AND SAVE THESE INSTRUCTIONS BEFORE USE GENERAL SAFETY INSTRUCTIONS: ALWAYS OPERATE THE UNIT IN AN UPRIGHT POSITION AND PLACE

### How much more electricity do we use in a heatwave?

January 2015 Heatwaves and electricity supply Heatwaves in Australia normally lead to significant increases in electricity demand. The main reason for this is the increased use of air conditioners over

### Fire Damage. To Help Prevent. a Guide

a Guide To Help Prevent Fire Damage Fire damage in your home can be costly and emotionally devastating. The damage caused by the flames and smoke can destroy a lifetime of memories in a matter of minutes.

### A kilowatt-hour (kwh) is a unit for measuring energy. It is, as its name suggests, one kilowatt of power used over a period of one hour.

How Much Electricity Does a Light Bulb Use and What will it Cost Me? We (the Village of Paw Paw) are often asked How do I know how much electricity a home appliance or device is using and what is the charge

### Science Grade 05 Unit 04 Exemplar Lesson 01: Types of Energy

Grade 05 Unit 04 Exemplar Lesson 01: Types of Energy This lesson is one approach to teaching the State Standards associated with this unit. Districts are encouraged to customize this lesson by supplementing

### Electrical Symbols PREPARATION OBJECTIVES SCHEDULE VOCABULARY MATERIALS. The students. For each student. For each team of two.

activity 2 Electrical Symbols OBJECTIVES In this activity, students discover the usefulness of symbols used to identify parts of a circuit. The students draw and interpret circuit diagrams construct circuits

### Stand Alone PV System Sizing Worksheet (example)

Stand Alone PV System Sizing Worksheet (example) Application: Stand alone camp system 7 miles off grid Location: Baton Rouge, La Latitude: 31.53 N A. Loads A1 Inverter efficiency 85 A2 Battery Bus voltage

### Current Cost TREC Current Cost ENVI Current Cost EnviR SmartNow Solar Monitoring Kit

Installation Guidelines Products Covered: Current Cost TREC Current Cost ENVI Current Cost EnviR SmartNow Solar Monitoring Kit This document is for the use of Qualified Electricians and Electrical Contractors

### Identify ways to save energy in the home, either through energy efficiency or energy conservation.

Home Energy Audit TEACHER GUIDE Students will learn about energy conservation and energy efficiency. By conducting an audit of their own homes, they will learn to identify energy-efficient features and

### SOLAR ENERGY. Solar Energy, Kit #6A: Efficiency of Solar Cells. Solar Energy, Kit #6B: Solar Extension Activities INSTITUTE FOR SCHOOL PARTNERSHIP

SOLAR ENERGY Solar Energy, Kit #6A: Efficiency of Solar Cells Solar Energy, Kit #6B: Solar Extension Activities INSTITUTE FOR SCHOOL PARTNERSHIP PARC Contents: Topic Template 3 Introduction: Photovoltaic

### MODEL 5010 DUAL CHANNEL SMOKE/FIRE DETECTION MODULE

DESCRIPTION MODEL 5010 DUAL CHANNEL SMOKE/FIRE DETECTION MODULE DESCRIPTION The SST Model 5010 Two Channel Smoke/Fire Detection Module provides two independent detection input channels for the NOVA-5000

### IMPORTANT SAFETY INSTRUCTIONS WARNING READ AND SAVE THESE OPERATING AND SAFETY INSTRUCTIONS BEFORE USING THIS HEATER.

THERMAWAVE CERAMIC HEATER Model HZ-850 Series Model HZ-860 Series IMPORTANT SAFETY INSTRUCTIONS WARNING READ AND SAVE THESE OPERATING AND SAFETY INSTRUCTIONS BEFORE USING THIS HEATER. Warning Failure to

YOUR abcde PROPERTY YOUR PROPERTY & YOU A guide to utilities and your property Contents 1. Things to locate in the property 2. Choosing how to pay for utilities 3. What type of energy user are you? 4.

### Heat Surge Model X5C Fire Place Insert Service Manual Applies to all units w/30000208 circuit board

Heat Surge Model X5C Fire Place Insert Service Manual Applies to all units w/30000208 circuit board 2012 HS M4417A BR16597R-1 HEAT SURGE 8000 FREEDOM AVE, N. CANTON, OH 44720 330-244-8161 WWW.HEATSURGE.COM

### Help protect your home, possessions and family.

Help protect your home, possessions and family. A guide to your Square D electrical distribution system SM Make the most of your energy Understanding your home s electrical distribution system As one of

### Your Guide to. Electrical Safety

Your Guide to Electrical Safety AN INTRODUCTION Electricity is an important part of our daily lives. It's everywhere. It lights our homes, cooks our food, powers our tools, and runs our televisions, radios

### Electrical Safety Plugs What are the different types of plugs? Extension Cords What are some potential hazards involving extension cords?

Electrical Safety Electricity can be a friend, but it can also hurt if you do not treat it with respect. Everyday someone loses his or her home or business due to an electrical fire. These tragedies are

### Air conditioning, electrical testing

just a test. Air conditioning, electrical testing 01-253 Wire and component test using VAG1598 A test box Special tools and equipment VAG 1598 A test box and VAG 1598/11 adapter cable and VAG 1598/12 VAG1526

### E&I MAINTENANCE ENTRY TEST ENABLING OBJECTIVES. DESCRIBE hazards and precautions taken to avoid injury in the workplace.

SAFETY Industrial DESCRIBE hazards and precautions taken to avoid injury in the workplace. Example #1: All of the following are common PPE used to perform maintenance activities EXCEPT: a. Safety Glasses

### Induced voltages and Inductance Faraday s Law

Induced voltages and Inductance Faraday s Law concept #1, 4, 5, 8, 13 Problem # 1, 3, 4, 5, 6, 9, 10, 13, 15, 24, 23, 25, 31, 32a, 34, 37, 41, 43, 51, 61 Last chapter we saw that a current produces a magnetic

### PV (photovoltaic) Basics There are generally two types of PV systems. The first and easiest (though the least flexible) is a grid tie system where

PV (photovoltaic) Basics There are generally two types of PV systems. The first and easiest (though the least flexible) is a grid tie system where the power generated by the solar panel (panels) runs an

### Make your home and family fire safe

Make your home and family fire safe The New Zealand Fire Service is called out to fires in homes just like yours on average every three hours. Millions of dollars in property and possessions go up in smoke

### I. R. D. T INSTITUTE OF RESEARCH DEVELOPMENT AND TRAINING

I. R. D. T INSTITUTE OF RESEARCH DEVELOPMENT AND TRAINING SYLLABUS SIX MONTHS FULL TIME Repair and Maintenance of Electrical gadgets EFFECTIVE FROM:- UNDER DEVELOPMENT Prepared By: Curriculum Development

### Does a landlord have to have an electrical inspection carried out?

Bob Miller, Head of Housing Services at the University of London spoke to Vincenzo Rampulla at the National Landlords Association (NLA) about electrical and fire safety in private rented accommodation.

### Stove Guard Kit User Manual

Stove Guard Kit User Manual Innohome improves the Safety of your Home. inno home www.innohome.com Stove Guard Kit User Manual Stove Guard Kit User Manual Congratulations! You now own one of the most intelligent

### Nintendo 64 Power Supply Power Cord Replacement Guide Page 1 of 10. Nintendo 64 Power Supply Power Cord Replacement Guide

Nintendo 64 Power Supply Power Cord Replacement Guide Page 1 of 10 Nintendo 64 Power Supply Power Cord Replacement Guide Thank you for your purchase of a Nintendo 64 power supply replacement power cord

### Study Guide CCA week 12 - Key

Study Guide CCA week 12 - Key Vocabulary to know: (define on separate paper & give an example of each) Electrical Energy Mechanical Energy Force Energy carried by electricity Ex: Toaster, Fan, Anything

### Your energy costs. A room-by-room guide. P.O. Box 129831 San Diego, CA 92112-9831 1-800-411-7343 Connect at sdge.com

Your energy costs A room-by-room guide P.O. Box 129831 San Diego, CA 92112-9831 1-800-411-7343 Connect at sdge.com 2014 San Diego Gas & Electric Company. E Printed on recycled paper with soy-based inks.

### Eðlisfræði 2, vor 2007

[ Assignment View ] [ Print ] Eðlisfræði 2, vor 2007 30. Inductance Assignment is due at 2:00am on Wednesday, March 14, 2007 Credit for problems submitted late will decrease to 0% after the deadline has

### Analog control unit for mobile robots

Analog control unit for mobile robots Soldering kit for experimentation For Fischertechnik robots and others Most diverse functions Requires no programming Patented sensor technology Summary We are pleased

### Measuring Biased Inductors with the GenRad Digibridge

534 Main Street, Westbury NY 11590 www.ietlabs.com sales@ietlabs.com P: 5163345959, 8008998438 pplication Note Measuring Biased Inductors with the GenRad Digibridge This note is intended for those who

### The node voltage method

The node voltage method Equivalent resistance Voltage / current dividers Source transformations Node voltages Mesh currents Superposition Not every circuit lends itself to short-cut methods. Sometimes

SCHOOLGEN ACTIVITIES This activity enables students to understand the relationship between energy and power. Students will: find out the power ratings of various appliances around their school and the

### What is Obstructive Sleep Apnoea?

Patient Information Leaflet: Obstructive Sleep Apnoea Greenlane Respiratory Services, Auckland City Hospital & Greenlane Clinical Centre Auckland District Health Board What is Obstructive Sleep Apnoea?

Personal Alert Victoria Personal Alert Victoria (PAV) is a personal monitoring and emergency response service. It is funded by the Victorian Government and provided free of charge to eligible frail, isolated

### Video Component (15 min)

The tree house detectives continue their quest for the solution to the case of the electrical mystery. Because they are eager to go swimming in their neighbor s pool, the tree house detectives hope that

### Electrical Symbols and Line Diagrams

Electrical Symbols and Line Diagrams Chapter 3 Material taken from Chapter 3 of One-Line Diagrams One-line diagram a diagram that uses single lines and graphic symbols to indicate the path and components

### Dealer Sales & Service Guide

Analog Models w/thermostat or Timerstat Heat Siphon Not Starting 1 BREAKER TRIPPED - Check Breaker Box for correct size breaker Breakers: EX; Domestic model 2.25hp (20amp) 3.25hp (40amp) 5hp (50amp) check

### ENERGY AWARE. Monitor User Guide

ENERGY AWARE Monitor User Guide Table of contents Introduction 3 How it works 4 Have you got everything? 4 Before you get started 5 Setting up your TREC Display 6 Pairing the TREC Display and Transmitter

### The ACD pro replaces any resistance based controller and is suitable for nearly any motor within the current rating.

1. Main Features Non contact trigger. Minimal maintenance. Microcontroller- based PWM control. New braking behavior and high acceleration. Adjustable brake sensitivity and choke. Suitable for all motors

### TruPower-Portable-500W. Solar Starter kit

TruPower-Portable-500W Solar Starter kit This Solar starter kit is an easy to use solar power supply system that is the complete solution for all your solar power needs. It is a solar generator that converts

### ECOSMART TROUBLE SHOOTING GUIDE MODELS ECO18-ECO27

ECOSMART TROUBLE SHOOTING GUIDE MODELS ECO18-ECO27 THIS STEP BY STEP TROUBLE SHOOTING GUIDE IS DESIGNED FOR THE INSTALLER IF ANY ISSUES ARISE WITH TANKLESS WATER HEATER. YOU CAN ALSO VIEW A TROUBLE SHOOTING

### RHODE ISLAND DIVISION OF STATE FIRE MARSHAL

RHODE ISLAND DIVISION OF STATE FIRE MARSHAL Smoke Alarm and Carbon Monoxide Brochure JOHN E. CHARTIER STATE FIRE MARSHAL 118 PARADE STREET PROVIDENCE, RI 02909 DAYS 401-462-4200 24 Hr. 401-222-2331 FAX#

### FREQUENCY RESPONSE OF AN AUDIO AMPLIFIER

2014 Amplifier - 1 FREQUENCY RESPONSE OF AN AUDIO AMPLIFIER The objectives of this experiment are: To understand the concept of HI-FI audio equipment To generate a frequency response curve for an audio

### Application Note. Troubleshooting Communications

ANX Application Note Troubleshooting Communications This document is a guide for basic troubleshooting of UPB communication issues. There are two things that can disturb UPB communications: noise and attenuation.

### Exercises on Voltage, Capacitance and Circuits. A d = (8.85 10 12 ) π(0.05)2 = 6.95 10 11 F

Exercises on Voltage, Capacitance and Circuits Exercise 1.1 Instead of buying a capacitor, you decide to make one. Your capacitor consists of two circular metal plates, each with a radius of 5 cm. The

### What Is Regeneration?

What Is Regeneration? Braking / Regeneration Manual Regeneration Overview Revision 1.0 When the rotor of an induction motor turns slower than the speed set by the applied frequency, the motor is transforming

### Section 3: Load Planning Bill Brown, P.E., Square D Engineering Services

Section 3: Load Planning Bill Brown, P.E., Square D Engineering Services Basic Principles The most vital, but often the last to be acquired, pieces of information for power system design are the load details.

### UNIT D ELECTRICAL PRINCIPLES & TECHNOLOGIES. Science 9

UNIT D ELECTRICAL PRINCIPLES & TECHNOLOGIES Science 9 LEARNING GOALS Investigate and interpret devices that convert various forms of energy Describe technologies for the transfer and control of electrical

### REGULINE 600VA / 1000VA REGULATOR USER MANUAL

REGULINE 600VA / 1000VA REGULATOR USER MANUAL TUNÇMATİK REGULINE SERIES AUTOMATIC VOLTAGE REGULATOR Models: REGULINE 600VA / REGULINE 1000VA Principle of Operation Automatic Voltage Regulators regulate

### Achieving the impossible

1 Achieving the impossible Taking control of shore power with the Phoenix Multi/MultiPlus from Victron Energy * Sometimes the features of a new product are so unique that the benefits are difficult to

### Cambridge International Examinations Cambridge International General Certificate of Secondary Education

Cambridge International Examinations Cambridge International General Certificate of Secondary Education *0123456789* PHYSICS 0625/04 Paper 4 Theory (Extended) For Examination from 2016 SPECIMEN PAPER 1