Q24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b
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1 Q24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to 2Q, while keeping the conductors in the same positions. As a result of this change, the capacitance C of the two conductors A. becomes 4 times great. B. becomes twice as great. C. remains the same. D. becomes 1/2 as great. E. becomes 1/4 as great.
2 A24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to 2Q, while keeping the conductors in the same positions. As a result of this change, the capacitance C of the two conductors A. becomes 4 times great. B. becomes twice as great. C. remains the same. D. becomes 1/2 as great. E. becomes 1/4 as great.
3 Q24.2 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to 2Q, while keeping the conductors in the same positions. As a result of this change, the voltage across the two conductors A. becomes 4 times great. B. becomes twice as great. C. remains the same. D. becomes 1/2 as great. E. becomes 1/4 as great.
4 A24.2 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to 2Q, while keeping the conductors in the same positions. As a result of this change, the voltage across the two conductors A. becomes 4 times great. B. becomes twice as great. C. remains the same. D. becomes 1/2 as great. E. becomes 1/4 as great.
5 Q24.3 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. What is the equivalent capacitance of the two capacitors as a unit? A. C eq = 18 μf B. C eq = 9 μf C. C eq = 6 μf D. C eq = 4 μf E. C eq = 2 μf a b 12 μf 6 μf
6 A24.3 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. What is the equivalent capacitance of the two capacitors as a unit? A. C eq = 18 μf B. C eq = 9 μf C. C eq = 6 μf D. C eq = 4 μf E. C eq = 2 μf a b 12 μf 6 μf
7 Q24.4 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. If the charge on the 12 μf capacitor is 24 microcoulombs (24 μc), what is the charge on the 6 μf capacitor? A. 48 μc B. 36 μc C. 24 μc D. 12 μc E. 6 μc a b 12 μf 6 μf
8 A24.4 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. If the charge on the 12 μf capacitor is 24 microcoulombs (24 μc), what is the charge on the 6 μf capacitor? A. 48 μc B. 36 μc C. 24 μc D. 12 μc E. 6 μc a b 12 μf 6 μf
9 Q24.5 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. What is the equivalent capacitance of the two capacitors as a unit? a 12 μf 6 μf A. C eq = 18 μf B. C eq = 9 μf C. C eq = 6 μf D. C eq = 4 μf E. C eq = 2 μf b
10 A24.5 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. What is the equivalent capacitance of the two capacitors as a unit? a 12 μf 6 μf A. C eq = 18 μf B. C eq = 9 μf C. C eq = 6 μf D. C eq = 4 μf E. C eq = 2 μf b
11 Q24.6 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. If the charge on the 12 μf capacitor is 24 microcoulombs (24 μc), what is the charge on the 6 μf capacitor? a 12 μf 6 μf A. 48 μc B. 36 μc C. 24 μc D. 12 μc E. 6 μc b
12 A24.6 A 12 μf capacitor and a 6 μf capacitor are connected together as shown. If the charge on the 12 μf capacitor is 24 microcoulombs (24 μc), what is the charge on the 6 μf capacitor? a 12 μf 6 μf A. 48 μc B. 36 μc C. 24 μc D. 12 μc E. 6 μc b
13 Q24.7 You reposition the two plates of a capacitor so that the capacitance doubles. There is vacuum between the plates. If the charges +Q and Q on the two plates are kept constant in this process, the energy stored in the capacitor A. becomes 4 times greater. B. becomes twice as great. C. remains the same. D. becomes 1/2 as great. E. becomes 1/4 as great.
14 A24.7 You reposition the two plates of a capacitor so that the capacitance doubles. There is vacuum between the plates. If the charges +Q and Q on the two plates are kept constant in this process, the energy stored in the capacitor A. becomes 4 times greater. B. becomes twice as great. C. remains the same. D. becomes 1/2 as great. E. becomes 1/4 as great.
15 Q24.8 You slide a slab of dielectric (K > 1) between the plates of a parallel-plate capacitor. As you do this, the charges on the plates remain constant. What effect does adding the dielectric have on the potential difference between the capacitor plates? A. The potential difference increases. B. The potential difference remains the same. C. The potential difference decreases. D. not enough information given to decide
16 A24.8 You slide a slab of dielectric (K >1) between the plates of a parallel-plate capacitor. As you do this, the charges on the plates remain constant. What effect does adding the dielectric have on the potential difference between the capacitor plates? A. The potential difference increases. B. The potential difference remains the same. C. The potential difference decreases. D. not enough information given to decide
17 Q24.9 You slide a slab of dielectric (K > 1) between the plates of a parallel-plate capacitor. As you do this, the charges on the plates remain constant. What effect does adding the dielectric have on the energy stored in the capacitor? A. The stored energy increases. B. The stored energy remains the same. C. The stored energy decreases. D. not enough information given to decide
18 A24.9 You slide a slab of dielectric (K > 1) between the plates of a parallel-plate capacitor. As you do this, the charges on the plates remain constant. What effect does adding the dielectric have on the energy stored in the capacitor? A. The stored energy increases. B. The stored energy remains the same. C. The stored energy decreases. D. not enough information given to decide
19 Q24.10 You slide a slab of dielectric (K > 1) between the plates of a parallel-plate capacitor while the capacitor is connected to a battery. As you do this, the potential difference between the plates remains constant. What effect does adding the dielectric have on the amount of charge on each of the capacitor plates? A. The amount of charge increases. B. The amount of charge remains the same. C. The amount of charge decreases. D. not enough information given to decide
20 A24.10 You slide a slab of dielectric (K > 1) between the plates of a parallel-plate capacitor while the capacitor is connected to a battery. As you do this, the potential difference between the plates remains constant. What effect does adding the dielectric have on the amount of charge on each of the capacitor plates? A. The amount of charge increases. B. The amount of charge remains the same. C. The amount of charge decreases. D. not enough information given to decide
21 Q24.11 A dielectric material inside a parallel-plate capacitor has a breakdown field of E m V/m. The area of each plate is (A), the separation of the plates is (d). What is the maximum voltage difference (V m ) this capacitor holds before dielectric breakdown occurs? A. V m =E m. B. V m =E m A C. V m =E m d D. V m =E m A/d D. not enough information given to decide
22 A24.11 A dielectric material inside a parallel-plate capacitor has a breakdown field of E m V/m. The area of each plate is (A), the separation of the plates is (d). What is the maximum voltage difference (V m ) this capacitor holds before dielectric breakdown occurs? A. V m =E m. B. V m =E m A C. V m =E m d D. V m =E m A/d D. not enough information given to decide
HW7 Solutions Notice numbers may change randomly in your assignments and you may have to recalculate solutions for your specific case.
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