The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

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Answer 1

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Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

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The capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s. AVbattery = 24 V, C = 3.0 μF, and R = 2.0 Q. At sometime after the switch is closed, the voltage across the resistor is measured to be 16 V. What is the charge on the capacitor at this time, in µC? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

Consider the circuit below. The battery has an open-circuit voltage of ɛ = 30 V and an internal resistance ofr = 1N. R2 = 18.00 N E = 30.00 V R1 9.00 N %3D ir = 1.00 N R3 10.00 N R5 8.00 N R4 = 10.00 N Hint a. Find the equivalent resistance of the circuit (not including the internal resistance). Reg b. Find the current out of the battery (do not ignore the internal resistance). Ibat A c. Find the potential drop across each resistor. o Across Rj and R2: AV = V. Across R3 and R4: AV = V. Across Rs: Д V — V. Across r: AV = V. (These drops should add up to the value of ɛ.) d. Find the currents through Rị and R2: IRI A IR2 A e. Find the currents through R3 and R4: IR3 А IRA A f. What is the percentage of the total power supplied by the battery that is dissipated in the internal resistance of the battery? A total of % of the total power supplied by the battery is dissipated in the internal resistance r. 十

In the circuit shown in figure 1, epsilon is equal to 41.0 V, R1= 4 ohms, R2= 6 ohms, and R3= 3 ohms. (D) for the 3 ohm resistor calculate the current through the resistor with S open. (E) what is the potential difference Vabbetween points a and b when the switch S is closed? (F) for the 4 ohm resistor calculate the current through the resistor with S closed. (G) for the 6 ohm resistor calculate the current through the resistor with S closed (H) for the 3 ohm resistor calculate the current through the resistor with S closed. (I) for each resistor, does the current increase or decrease when S is closed?

Answer 2

Question

Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

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Answer 3

Question

Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

Answer 6

Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

Answer 7

Chapter 28, Problem 14P

(a)

To determine

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

Answer 8

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

Answer 9

(b)

To determine

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

Answer 10

Expert Solution & Answer

Answer 11

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Answer 12

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Answer 13

Ch. 28.1 - To maximize the percentage of the power from the...Ch. 28.2 - With the switch in the circuit of Figure 27.4a...Ch. 28.2 - With the switch in the circuit of Figure 27.6a...Ch. 28.2 - Prob. 28.4QQ Ch. 28.4 - Consider the circuit in Figure 27.17 and assume...Ch. 28 - Prob. 1OQ Ch. 28 - Prob. 2OQ Ch. 28 - Prob. 3OQ Ch. 28 - Prob. 4OQ Ch. 28 - Prob. 5OQ

The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

Solution Summary: The author explains that the equivalent resistance between the points a and b of the given circuit decreases when the switch is closed at S.

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The equivalent resistance between the points a and b will increase or decrease when the switch S is closed.

The value of R when the equivalent resistance is dropped by 50% and the switch is closed.

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