Clicker Question. Which of the two arrangements shown has the smaller equivalent resistance between points a and b?
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- Gregory Ramsey
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2 Which of the two arrangements shown has the smaller equivalent resistance between points a and b? A. the series arrangement B. the parallel arrangement C. The equivalent resistance is the same for both arrangements. D. The answer depends on the values of the individual resistances R 1, R 2, and R 3.
3 Which of the two arrangements shown has the smaller equivalent resistance between points a and b? A. the series arrangement B. the parallel arrangement C. The equivalent resistance is the same for both arrangements. D. The answer depends on the values of the individual resistances R 1, R 2, and R 3.
4 Three identical resistors, each of resistance R, are connected as shown. What is the equivalent resistance of this arrangement of three resistors? A. 3R B. 2R C. 3R/2 D. 2R/3 E. R/3
5 Three identical resistors, each of resistance R, are connected as shown. What is the equivalent resistance of this arrangement of three resistors? A. 3R B. 2R C. 3R/2 D. 2R/3 E. R/3
6 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in parallel as shown. 60 W The voltage between points a and b is. Through which bulb is a 120 W b there the greatest voltage drop? A. the 120-V, 60-W light bulb 240 W B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs have the same voltage drop.
7 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in parallel as shown. 60 W The voltage between points a and b is. Through which bulb is a 120 W b there the greatest voltage drop? A. the 120-V, 60-W light bulb 240 W B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs have the same voltage drop.
8 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected 60 W in parallel as shown. The voltage between points a and b is. Which bulb glows the a 120 W b brightest? A. the 120-V, 60-W light bulb 240 W B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs glow with equal brightness.
9 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected 60 W in parallel as shown. The voltage between points a and b is. Which bulb glows the a 120 W b brightest? A. the 120-V, 60-W light bulb 240 W B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs glow with equal brightness.
10 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is. Across which bulb is there the greatest voltage drop? a 60 W 120 W A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb 240 W b C. the 120-V, 240-W light bulb D. All three light bulbs have the same voltage drop.
11 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is. Across which bulb is there the greatest voltage drop? a 60 W 120 W A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb 240 W b C. the 120-V, 240-W light bulb D. All three light bulbs have the same voltage drop.
12 a A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is. Which bulb glows the brightest? A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb 60 W 120 W 240 W b D. All three light bulbs glow with equal brightness.
13 a A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is. Which bulb glows the brightest? A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb 60 W 120 W 240 W b D. All three light bulbs glow with equal brightness.
14 Three identical light bulbs are connected to a source of emf as shown. Which bulb is brightest? A. light bulb A B. light bulb B C. light bulb C D. both light bulbs B and C (Both are equally bright and are brighter than light bulb A.) E. All bulbs are equally bright.
15 Three identical light bulbs are connected to a source of emf as shown. Which bulb is brightest? A. light bulb A B. light bulb B C. light bulb C D. both light bulbs B and C (Both are equally bright and are brighter than light bulb A.) E. All bulbs are equally bright.
16 Are R1 and R2 in parallel, in series, or neither? A) parallel B) series C) neither
17 Are R1 and R2 in parallel, in series, or neither? A) parallel B) series C) neither
18 Are R3 and R4 in parallel, in series, or neither? A) parallel B) series C) neither
19 Are R2 and R4 in parallel, in series, or neither? A) parallel B) series C) neither
20 Which is the proper usage of Kirchhoff s Current Law for the junction? I1 I2 A) I1=I2 I3 ε2 B) I1+I2+I3=0 ε1 R1 R2 C) I1+I2-I3=0 D) I1-I2=I3 E) ε1/r1+ε2/r2+i2=0
21 Which is the proper usage of Kirchhoff s Current Law for the junction? I1 I2 A) I1=I2 I3 ε2 B) I1+I2+I3=0 ε1 R1 R2 C) I1+I2-I3=0 D) I1-I2=I3 E) ε1/r1+ε2/r2+i2=0
22 Which is the proper usage of Kirchhoff s Voltage Law? I1 I2 A) ε1 + I3R1=0 B) ε1 - I3R1=0 ε1 R1 I3 ε2 R2 C) ε1 + ε2 - I3R1=0 D) ε1 + ε2 - I3R1+R2I2=0 E) ε1/r1+ε2/r2+i2=0
23 Which is the proper usage of Kirchhoff s Voltage Law? I1 I2 A) ε1 + I3R1=0 B) ε1 - I3R1=0 ε1 R1 I3 ε2 R2 C) ε1 + ε2 - I3R1=0 D) ε1 + ε2 - I3R1+R2I2=0 E) ε1/r1+ε2/r2+i2=0
24 You wish to study a resistor in a circuit. To simultaneously measure the current in the resistor and the voltage across the resistor, you would place A. an ammeter in series and an voltmeter in series. B. an ammeter in series and an voltmeter in parallel. C. an ammeter in parallel and an voltmeter in series. D. an ammeter in parallel and an voltmeter in parallel.
25 You wish to study a resistor in a circuit. To simultaneously measure the current in the resistor and the voltage across the resistor, you would place A. an ammeter in series and an voltmeter in series. B. an ammeter in series and an voltmeter in parallel. C. an ammeter in parallel and an voltmeter in series. D. an ammeter in parallel and an voltmeter in parallel.
26 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the maximum charge stored on the capacitor? A. the emf ε of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both ε and C E. all three of ε, C, and R
27 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the maximum charge stored on the capacitor? A. the emf ε of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both ε and C E. all three of ε, C, and R
28 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the rate at which the capacitor charges? A. the emf ε of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both C and R E. all three of ε, C, and R
29 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the rate at which the capacitor charges? A. the emf ε of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both C and R E. all three of ε, C, and R
Circuits. The light bulbs in the circuits below are identical. Which configuration produces more light? (a) circuit I (b) circuit II (c) both the same
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