In the circuit shown in the figure, R1 = 10 Ω, R2 = 12 Ω, R3 = 20 Ω, V1 = 1.0 V, V2 = 7.0 V, and the batteries are both ideal. What is the current through R1?

A) 0.60 A B) 0.80 A C) 0.18 A D) 0.13 A A) 0.60 A B) 0.80 A C) 0.18 A D) 0.13 A

Exam 23: Circuits

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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 141

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 142

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

(Multiple Choice)

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Question 143

In the circuit shown in the figure, R₁ = 10 Ω, R₂ = 12 Ω, R₃ = 20 Ω, V₁ = 1.0 V, V₂ = 7.0 V, and the batteries are both ideal. What is the current through R₁?

(Multiple Choice)

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Question 144

A 9-V battery is hooked up to two resistors in series. One has a resistance of 5 Ω, and the other has a resistance of 10 Ω. Several locations along the circuit are marked with letters, as shown in the figure. Through which resistor is energy being dissipated at the higher rate?

(Multiple Choice)

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Question 145

Showing 141 - 145 of 145

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?

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?

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

In the circuit shown in the figure, R₁ = 10 Ω, R₂ = 12 Ω, R₃ = 20 Ω, V₁ = 1.0 V, V₂ = 7.0 V, and the batteries are both ideal. What is the current through R₁?

A 9-V battery is hooked up to two resistors in series. One has a resistance of 5 Ω, and the other has a resistance of 10 Ω. Several locations along the circuit are marked with letters, as shown in the figure. Through which resistor is energy being dissipated at the higher rate?

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