A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the current I2 if the batteries are ideal. (It is not necessary to solve the entire circuit.)

A) +0.1 A B) +0.3 A C) +0.5 A D) -0.1 A E) -0.3 A A) +0.1 A B) +0.3 A C) +0.5 A D) -0.1 A E) -0.3 A

A multiloop circuit is shown in the figure. Find the current I1 if the batteries are ideal. (It is not necessary to solve the entire circuit.)

A) -2 A B) 2 A C) 6 A D) -5 A E) 0 A A) -2 A B) 2 A C) 6 A D) -5 A E) 0 A

Exam 23: Circuits

The capacitive network shown in the figure is assembled with initially uncharged capacitors. Assume that all the quantities in the figure are accurate to two significant figures. The switch S in the network is kept open throughout. What is the total energy stored in the seven capacitors?

(Multiple Choice)

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Question 81

The network shown is assembled with uncharged capacitors X , Y, and Z, with C_X=3.0 $\mu$ F, C_Y=5.0 $\mu$ F and C_Z=1.0 $\mu$ F The switches S₁ and S₂ are initially open, and a potential difference V_ab = 120 V is applied between points a and b. After the network is assembled, switch S₁ is then closed, but switch S₂ is kept open. How much charge is finally stored in capacitor Y? $The network shown is assembled with uncharged capacitors X , Y, and Z, with CX=3.0 \mu F, CY=5.0 \mu F and CZ=1.0 \mu F The switches S1 and S2 are initially open, and a potential difference Vab = 120 V is applied between points a and b. After the network is assembled, switch S1 is then closed, but switch S2 is kept open. How much charge is finally stored in capacitor Y?$

(Multiple Choice)

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Question 82

A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the emf ε if the batteries are ideal. (It is not necessary to solve the entire circuit.)

(Multiple Choice)

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Question 83

A network of capacitors is mostly inside a sealed box, but one capacitor C_X is sticking out, as shown in the figure. When you connect a multimeter across points a and b, it reads 27.0 µF. What is C_X?

(Multiple Choice)

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Question 84

For the circuit shown in the figure, the ideal battery has an emf ε = 80 V. The four resistors have resistances of R₁ = 14 $\Omega$ R₂= 21 $\Omega$ R₃ = 21 $\Omega$ and R₄ = 14 $\Omega$ Calculate the rate at which heat is being generated in the resistor R₄. $For the circuit shown in the figure, the ideal battery has an emf ε = 80 V. The four resistors have resistances of R1 = 14 \Omega R2= 21 \Omega R3 = 21 \Omega and R4 = 14 \Omega Calculate the rate at which heat is being generated in the resistor R4.$

(Short Answer)

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Question 85

For the circuit shown in the figure, what is the power dissipated in the 2.0-Ω resistor? All the numbers shown are accurate to three significant figures.

(Multiple Choice)

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Question 86

Determine the current in the 4.0-Ω resistor for the circuit shown in the figure. Assume that the batteries are ideal and that all numbers are accurate to two significant figures.

(Multiple Choice)

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Question 87

An uncharged capacitor is connected in series with a resistor, a dc battery, and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the charge Q on the capacitor as a function of time t?

(Multiple Choice)

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Question 88

A system of four capacitors is connected across a 90-V voltage source as shown in the figure. (a) What is the charge on the 4.0-µF capacitor? (b) What is the charge on the 2.0-µF capacitor?

(Short Answer)

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Question 89

A resistor, an uncharged capacitor, a dc voltage source, and an open switch are all connected in series. The switch is closed at time t = 0 s. Which one of the following is a correct statement about the circuit?

(Multiple Choice)

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Question 90

Determine the current in the 18-Ω resistor for the circuit shown in the figure assuming that the batteries are ideal.

(Multiple Choice)

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Question 91

A 1.0-µF capacitor and a 2.0-µF capacitor are connected together, and then that combination is connected across a 3.0-V potential source (a battery). What is the potential difference across the 2.0-µF capacitor if the capacitors are connected (a) in series or (b) in parallel?

(Short Answer)

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Question 92

A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the current I₂ if the batteries are ideal. (It is not necessary to solve the entire circuit.)

(Multiple Choice)

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Question 93

Four resistors are connected across an ideal dc battery with voltage V as shown in the figure. Assume that all quantities shown are accurate to two significant figures. If the total current through this circuit is I = 2.0 A, what is the current through the 4.0-Ω resistor?

(Multiple Choice)

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Question 94

A 2.0-μF capacitor and a 4.0-μF capacitor are connected in series across an 8.0-V potential source. What is the charge on the 2.0-μF capacitor?

(Multiple Choice)

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Question 95

Three resistors of 12 Ω, 12 Ω, and 6.0 Ω are connected together, and an ideal 12-V battery is connected across the combination. What is the current from the battery if they are connected (a) in series or (b) in parallel?

(Short Answer)

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Question 96

A resistor with a resistance of 360 Ω is in a series circuit with a capacitor of capacitance 7.3 × 10^-6 F. What capacitance must be placed in parallel with the original capacitance to change the capacitive time constant of the combination to three times its original value?

(Short Answer)

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Question 97

Suppose you have two capacitors and want to use them to store the maximum amount of energy by connecting them across a voltage source. You should connect them

(Multiple Choice)

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Question 98

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

(Multiple Choice)

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Question 99

A multiloop circuit is shown in the figure. Find the current I₁ if the batteries are ideal. (It is not necessary to solve the entire circuit.)

(Multiple Choice)

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Question 100

Showing 81 - 100 of 157

Exam 23: Circuits

The capacitive network shown in the figure is assembled with initially uncharged capacitors. Assume that all the quantities in the figure are accurate to two significant figures. The switch S in the network is kept open throughout. What is the total energy stored in the seven capacitors?

A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the emf ε if the batteries are ideal. (It is not necessary to solve the entire circuit.)

A network of capacitors is mostly inside a sealed box, but one capacitor CX is sticking out, as shown in the figure. When you connect a multimeter across points a and b, it reads 27.0 µF. What is CX?

For the circuit shown in the figure, the ideal battery has an emf ε = 80 V. The four resistors have resistances of R1 = 14 Ω\OmegaΩ R2= 21 Ω\OmegaΩ R3 = 21 Ω\OmegaΩ and R4 = 14 Ω\OmegaΩ Calculate the rate at which heat is being generated in the resistor R4.

For the circuit shown in the figure, what is the power dissipated in the 2.0-Ω resistor? All the numbers shown are accurate to three significant figures.

Determine the current in the 4.0-Ω resistor for the circuit shown in the figure. Assume that the batteries are ideal and that all numbers are accurate to two significant figures.

An uncharged capacitor is connected in series with a resistor, a dc battery, and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the charge Q on the capacitor as a function of time t?

A system of four capacitors is connected across a 90-V voltage source as shown in the figure. (a) What is the charge on the 4.0-µF capacitor? (b) What is the charge on the 2.0-µF capacitor?

A resistor, an uncharged capacitor, a dc voltage source, and an open switch are all connected in series. The switch is closed at time t = 0 s. Which one of the following is a correct statement about the circuit?

Determine the current in the 18-Ω resistor for the circuit shown in the figure assuming that the batteries are ideal.

A 1.0-µF capacitor and a 2.0-µF capacitor are connected together, and then that combination is connected across a 3.0-V potential source (a battery). What is the potential difference across the 2.0-µF capacitor if the capacitors are connected (a) in series or (b) in parallel?

A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the current I2 if the batteries are ideal. (It is not necessary to solve the entire circuit.)

Four resistors are connected across an ideal dc battery with voltage V as shown in the figure. Assume that all quantities shown are accurate to two significant figures. If the total current through this circuit is I = 2.0 A, what is the current through the 4.0-Ω resistor?

A 2.0-μF capacitor and a 4.0-μF capacitor are connected in series across an 8.0-V potential source. What is the charge on the 2.0-μF capacitor?

Three resistors of 12 Ω, 12 Ω, and 6.0 Ω are connected together, and an ideal 12-V battery is connected across the combination. What is the current from the battery if they are connected (a) in series or (b) in parallel?

A resistor with a resistance of 360 Ω is in a series circuit with a capacitor of capacitance 7.3 × 10-6 F. What capacitance must be placed in parallel with the original capacitance to change the capacitive time constant of the combination to three times its original value?

Suppose you have two capacitors and want to use them to store the maximum amount of energy by connecting them across a voltage source. You should connect them

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

A multiloop circuit is shown in the figure. Find the current I1 if the batteries are ideal. (It is not necessary to solve the entire circuit.)

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A network of capacitors is mostly inside a sealed box, but one capacitor C_X is sticking out, as shown in the figure. When you connect a multimeter across points a and b, it reads 27.0 µF. What is C_X?

A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the current I₂ if the batteries are ideal. (It is not necessary to solve the entire circuit.)

A resistor with a resistance of 360 Ω is in a series circuit with a capacitor of capacitance 7.3 × 10^-6 F. What capacitance must be placed in parallel with the original capacitance to change the capacitive time constant of the combination to three times its original value?

A multiloop circuit is shown in the figure. Find the current I₁ if the batteries are ideal. (It is not necessary to solve the entire circuit.)