Question 1

For the circuit shown in the figure, R1 = 5.6 Ω, R2 = 5.6 Ω, R3 = 14 Ω, and ε = 6.0 V, and the battery is ideal.
(a) What is the equivalent resistance across the battery?
(b) Find the current through each resistor.

Accepted Answer

(a) 9.6 Ω ...

Question 2

For the circuit shown in the figure, R1 = 18 Ω, R2 = 44 Ω, R3 = 33 Ω, R4 = 14 Ω, R5 = 12 Ω, V1 = 18 V, V2 = 12 V, and the batteries are ideal. Determine I1 and I2.

Accepted Answer

I₁ = 0.25 A...

Question 3

Two resistors in series are equivalent to 9.0 Ω, and in parallel they are equivalent to 2.0 Ω. What are the resistances of these two resistors?

Accepted Answer

The answer of Two resistors in series are equivalent to...

Question 4

A number of resistors are connected across points A and B as shown in the figure. What is the equivalent resistance between points A and B?

Accepted Answer

A)   4 Ω
B)   6 Ω
C)   8 Ω
D)   10 Ω
E)   12 ΩF) A) and E)
G) B) and C)

Question 5

As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Accepted Answer

A)   increases.
B)   decreases.
C)   does not change.
D)   increases for a time and then starts to decrease.E) A) and B)
F) A) and C) A

Question 6

If emf of the ideal battery is V = 100 V, what is the potential difference across R5 for the circuit shown in the figure? 5 for the circuit shown in the figure?   A)  19 V B)  40 V C)  75 V D)  77 V" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   19 V
B)   40 V
C)   75 V
D)   77 VE) A) and D)
F) C) and D)

Question 7

Three capacitors of equal capacitance are arranged as shown in the figure, with a voltage source across the combination. If the voltage drop across C1 is  10.0 V, 10.0 \mathrm {~V} 	ext {, }10.0 V,   what is the voltage drop across  C3?C _ { 3 } ?C3​?  1 is  10.0 \mathrm {~V} 	ext {, }  what is the voltage drop across  C _ { 3 } ?    A)  20 V B)  10.0 V C)  40 V D)  30 V " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   20 V
B)   10.0 V
C)   40 V
D)   30 V E) C) and D)
F) B) and C)

Question 8

Three resistors with resistances of 2.0 Ω, 6.0 Ω, and 12 Ω are connected across an ideal dc voltage source V, as shown in the figure. If the total current in the circuit is I = 5.0 A, what is the current through the 12-Ω resistor?

Accepted Answer

A)   1.7 A
B)   2.5 A
C)   0.56 A
D)   5.0 A
E)   0.75 AF) B) and E)
G) A) and E)

Question 9

A 5.0-μF and a 12.0-μF capacitor are connected in series, and the series arrangement is connected in parallel to a  29.0−μF29.0 - \mu \mathrm { F }29.0−μF  capacitor. How much capacitance would a single capacitor need to replace this combination of three capacitors?

Accepted Answer

A)   33 μF
B)   13 μF
C)   16 μF
D)   38 μF E) A) and B)
F) A) and C)

Question 10

What is the equivalent resistance between points A and B of the network shown in the figure?

Accepted Answer

The answer of What is the equivalent resistance between points...

Question 11

A network of capacitors is connected across a potential difference V0 as shown in the figure.
(a) What should V0 be so that the 60.0-µF capacitor will have 18.0 µC of charge on each of its plates?
(b) Under the conditions of part (a), how much total energy is stored in this network of capacitors?

Accepted Answer

(a) 1.50 V (b) 13.5 μJ

Question 12

In the circuit shown in the figure, R1 = R2 = 90.0 Ω, R3 = R4 = 20.0 Ω, V1 = 7.0 V, V2 = 8.0 V, and the batteries are both ideal. What current does the ammeter read? 1 = R2 = 90.0 Ω, R3 = R4 = 20.0 Ω, V1 = 7.0 V, V2 = 8.0 V, and the batteries are both ideal. What current does the ammeter read?   A)  0.40 A B)  0.050 A C)  0.83 A D)  0.056 A" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   0.40 A
B)   0.050 A
C)   0.83 A
D)   0.056 AE) B) and C)
F) None of the above

Question 13

An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the potential difference across the 40-Ω resistor?

Accepted Answer

A)   20 V
B)   40 V
C)   60 V
D)   80 V
E)   100 VF) A) and E)
G) All of the above

Question 14

A portion of a circuit is shown in the figure, and the batteries are ideal. What is the potential difference VA - VB if I = 5.0 A? A - VB if I = 5.0 A?   A)  63 V B)  35 V C)  55 V D)  45 V E)  71 V" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   63 V
B)   35 V
C)   55 V
D)   45 V
E)   71 VF) A) and B)
G) A) and E)

Question 15

A fully charged 37-µF capacitor is discharged through a 1.0-kΩ resistor. If the voltage across the capacitor is reduced to 7.6 volts after just 20 ms, what was the original potential across the capacitor?

Accepted Answer

A)   16 V
B)   13 V
C)   11 V
D)   9.0 V
E)   8.0 VF) B) and C)
G) C) and D)

Question 16

For the circuit shown in the figure, C = 12 µF and R = 8.5 MΩ. Initially the switch S is open with the capacitor charged to a voltage of 80 V. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor, when the current in the circuit is 3.3 µA?

Accepted Answer

A)   350 µC
B)   340 µC
C)   480 µC
D)   620 µC
E)   700 µCF) All of the above
G) C) and E)

Question 17

Three resistors with resistances of 2.0 Ω, 6.0 Ω, and 12 Ω are connected across an ideal dc voltage source V as shown in the figure. If the total current through the circuit is I = 2.0 A, what is the applied voltage V?

Accepted Answer

A)   6.0 V
B)   3.0 V
C)   2.0 V
D)   2.7 V
E)   1.5 VF) All of the above
G) B) and D) D

Question 18

A charged capacitor is connected in series with a resistor and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the current I through the resistor as a function of time t?

Accepted Answer

A)  
B)  
C)  
D)  
E)  F) B) and C)
G) A) and E)

Question 19

What is the magnitude of the potential difference between points A and C for the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.

Accepted Answer

A)   6.0 V
B)   4.0 V
C)   3.0 V
D)   2.0 VE) B) and D)
F) All of the above

Question 20

A combination of a 2.0-Ω resistor in series with 4.0-Ω resistor is connected in parallel with a 3.0-Ω resistor. What is the equivalent resistance of this system?

Accepted Answer

A)   2.0 Ω
B)   3.0 Ω
C)   4.0 Ω
D)   9.0 ΩE) B) and C)
F) C) and D)

Exam 23: Circuits

For the circuit shown in the figure, R₁ = 5.6 Ω, R₂ = 5.6 Ω, R₃ = 14 Ω, and ε = 6.0 V, and the battery is ideal. (a) What is the equivalent resistance across the battery? (b) Find the current through each resistor.

Correct Answer
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(a) 9.6 Ω ...
View Answer

For the circuit shown in the figure, R₁ = 18 Ω, R₂ = 44 Ω, R₃ = 33 Ω, R₄ = 14 Ω, R₅ = 12 Ω, V₁= 18V, V₂ = 12 V, and the batteries are ideal. Determine I₁ and I₂.

Correct Answer
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I₁ = 0.25 A...
View Answer

Two resistors in series are equivalent to 9.0 Ω, and in parallel they are equivalent to 2.0 Ω. What are the resistances of these two resistors?

Correct Answer
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A number of resistors are connected across points A and B as shown in the figure. What is the equivalent resistance between points A and B?

Correct Answer
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As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Correct Answer
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A

If emf of the ideal battery is V = 100 V, what is the potential difference across R₅ for the circuit shown in the figure?

Correct Answer
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Correct Answer
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Three resistors with resistances of 2.0 Ω, 6.0 Ω, and 12 Ω are connected across an ideal dc voltage source V, as shown in the figure. If the total current in the circuit is I = 5.0 A, what is the current through the 12-Ω resistor?

Correct Answer
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A 5.0-μF and a 12.0-μF capacitor are connected in series, and the series arrangement is connected in parallel to a $29.0 - \mu \mathrm { F }$ capacitor. How much capacitance would a single capacitor need to replace this combination of three capacitors?

Correct Answer
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What is the equivalent resistance between points A and B of the network shown in the figure?

Correct Answer
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Correct Answer
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(a) 1.50 V (b) 13.5 μJ

In the circuit shown in the figure, R₁ = R₂ = 90.0 Ω, R₃ = R₄ = 20.0 Ω, V₁ = 7.0 V, V₂ = 8.0 V, and the batteries are both ideal. What current does the ammeter read?

Correct Answer
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An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the potential difference across the 40-Ω resistor?

Correct Answer
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A portion of a circuit is shown in the figure, and the batteries are ideal. What is the potential difference V_A- V_B if I = 5.0 A?

Correct Answer
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A fully charged 37-µF capacitor is discharged through a 1.0-kΩ resistor. If the voltage across the capacitor is reduced to 7.6 volts after just 20 ms, what was the original potential across the capacitor?

Correct Answer
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For the circuit shown in the figure, C = 12 µF and R = 8.5 MΩ. Initially the switch S is open with the capacitor charged to a voltage of 80 V. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor, when the current in the circuit is 3.3 µA?

Correct Answer
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Three resistors with resistances of 2.0 Ω, 6.0 Ω, and 12 Ω are connected across an ideal dc voltage source V as shown in the figure. If the total current through the circuit is I = 2.0 A, what is the applied voltage V?

Correct Answer
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D

A charged capacitor is connected in series with a resistor and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the current I through the resistor as a function of time t?

Correct Answer
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What is the magnitude of the potential difference between points A and C for the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.

Correct Answer
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A combination of a 2.0-Ω resistor in series with 4.0-Ω resistor is connected in parallel with a 3.0-Ω resistor. What is the equivalent resistance of this system?

Correct Answer
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Exam 23: Circuits

For the circuit shown in the figure, R1 = 5.6 Ω, R2 = 5.6 Ω, R3 = 14 Ω, and ε = 6.0 V, and the battery is ideal. (a) What is the equivalent resistance across the battery? (b) Find the current through each resistor.

Correct Answerverified(a) 9.6 Ω ...View AnswerShow Answer

For the circuit shown in the figure, R1 = 18 Ω, R2 = 44 Ω, R3 = 33 Ω, R4 = 14 Ω, R5 = 12 Ω, V1 = 18 V, V2 = 12 V, and the batteries are ideal. Determine I1 and I2.

Correct AnswerverifiedI1 = 0.25 A...View AnswerShow Answer

Two resistors in series are equivalent to 9.0 Ω, and in parallel they are equivalent to 2.0 Ω. What are the resistances of these two resistors?

Correct AnswerverifiedShow Answer

A number of resistors are connected across points A and B as shown in the figure. What is the equivalent resistance between points A and B?

Correct AnswerverifiedShow Answer

As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Correct AnswerverifiedA

If emf of the ideal battery is V = 100 V, what is the potential difference across R5 for the circuit shown in the figure?

Correct AnswerverifiedShow Answer

Three capacitors of equal capacitance are arranged as shown in the figure, with a voltage source across the combination. If the voltage drop across C1 is 10.0 V, 10.0 \mathrm {~V} \text {, }10.0 V, what is the voltage drop across C3?C _ { 3 } ?C3​?

Correct AnswerverifiedShow Answer

Three resistors with resistances of 2.0 Ω, 6.0 Ω, and 12 Ω are connected across an ideal dc voltage source V, as shown in the figure. If the total current in the circuit is I = 5.0 A, what is the current through the 12-Ω resistor?

Correct AnswerverifiedShow Answer

A 5.0-μF and a 12.0-μF capacitor are connected in series, and the series arrangement is connected in parallel to a 29.0−μF29.0 - \mu \mathrm { F }29.0−μF capacitor. How much capacitance would a single capacitor need to replace this combination of three capacitors?

Correct AnswerverifiedShow Answer

What is the equivalent resistance between points A and B of the network shown in the figure?

Correct AnswerverifiedShow Answer

A network of capacitors is connected across a potential difference V0 as shown in the figure. (a) What should V0 be so that the 60.0-µF capacitor will have 18.0 µC of charge on each of its plates? (b) Under the conditions of part (a), how much total energy is stored in this network of capacitors?

Correct Answerverified(a) 1.50 V (b) 13.5 μJ

In the circuit shown in the figure, R1 = R2 = 90.0 Ω, R3 = R4 = 20.0 Ω, V1 = 7.0 V, V2 = 8.0 V, and the batteries are both ideal. What current does the ammeter read?

Correct AnswerverifiedShow Answer

An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the potential difference across the 40-Ω resistor?

Correct AnswerverifiedShow Answer

A portion of a circuit is shown in the figure, and the batteries are ideal. What is the potential difference VA - VB if I = 5.0 A?

Correct AnswerverifiedShow Answer

A fully charged 37-µF capacitor is discharged through a 1.0-kΩ resistor. If the voltage across the capacitor is reduced to 7.6 volts after just 20 ms, what was the original potential across the capacitor?

Correct AnswerverifiedShow Answer

For the circuit shown in the figure, C = 12 µF and R = 8.5 MΩ. Initially the switch S is open with the capacitor charged to a voltage of 80 V. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor, when the current in the circuit is 3.3 µA?

Correct AnswerverifiedShow Answer

Three resistors with resistances of 2.0 Ω, 6.0 Ω, and 12 Ω are connected across an ideal dc voltage source V as shown in the figure. If the total current through the circuit is I = 2.0 A, what is the applied voltage V?

Correct AnswerverifiedD

A charged capacitor is connected in series with a resistor and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the current I through the resistor as a function of time t?

Correct AnswerverifiedShow Answer

What is the magnitude of the potential difference between points A and C for the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.

Correct AnswerverifiedShow Answer

A combination of a 2.0-Ω resistor in series with 4.0-Ω resistor is connected in parallel with a 3.0-Ω resistor. What is the equivalent resistance of this system?

Correct AnswerverifiedShow Answer

For the circuit shown in the figure, R₁ = 5.6 Ω, R₂ = 5.6 Ω, R₃ = 14 Ω, and ε = 6.0 V, and the battery is ideal. (a) What is the equivalent resistance across the battery? (b) Find the current through each resistor.

Correct Answer
verified
(a) 9.6 Ω ...
View Answer

For the circuit shown in the figure, R₁ = 18 Ω, R₂ = 44 Ω, R₃ = 33 Ω, R₄ = 14 Ω, R₅ = 12 Ω, V₁= 18V, V₂ = 12 V, and the batteries are ideal. Determine I₁ and I₂.

Correct Answer
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I₁ = 0.25 A...
View Answer

Correct Answer
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Correct Answer
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A

If emf of the ideal battery is V = 100 V, what is the potential difference across R₅ for the circuit shown in the figure?

Correct Answer
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Correct Answer
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Correct Answer
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A 5.0-μF and a 12.0-μF capacitor are connected in series, and the series arrangement is connected in parallel to a $29.0 - \mu \mathrm { F }$ capacitor. How much capacitance would a single capacitor need to replace this combination of three capacitors?

Correct Answer
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Correct Answer
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Correct Answer
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(a) 1.50 V (b) 13.5 μJ

In the circuit shown in the figure, R₁ = R₂ = 90.0 Ω, R₃ = R₄ = 20.0 Ω, V₁ = 7.0 V, V₂ = 8.0 V, and the batteries are both ideal. What current does the ammeter read?

Correct Answer
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Correct Answer
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A portion of a circuit is shown in the figure, and the batteries are ideal. What is the potential difference V_A- V_B if I = 5.0 A?

Correct Answer
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Correct Answer
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D

Correct Answer
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