Consider the circuit shown in the figure. Let the equivalent resistance of the circuit when the switch is open be Req, open, and the equivalent resistance when the switch is closed be Req, closed. a) Find the difference (in Ω) between the two equivalent resistances, Req, open − Req, closed. Req, open − Req, closed = b)When the switch S is closed, the equivalent resistance drops to 52.0% of the original value. Determine the value of R (in Ω). c) What If? What would the voltage (in V) between points a and b have to be for 200 W to be delivered to the circuit when the switch is closed? Assume that R has the value found in part (b).
Consider the circuit shown in the figure. Let the equivalent resistance of the circuit when the switch is open be Req, open, and the equivalent resistance when the switch is closed be Req, closed. a) Find the difference (in Ω) between the two equivalent resistances, Req, open − Req, closed. Req, open − Req, closed = b)When the switch S is closed, the equivalent resistance drops to 52.0% of the original value. Determine the value of R (in Ω). c) What If? What would the voltage (in V) between points a and b have to be for 200 W to be delivered to the circuit when the switch is closed? Assume that R has the value found in part (b).
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Consider the circuit shown in the figure.
Let the equivalent resistance of the circuit when the switch is open be
Req, open, and the equivalent resistance when the switch is closed be
Req, closed.
a) Find the difference (in Ω) between the two equivalent resistances,
Req, open − Req, closed.
Req, open − Req, closed =
b)When the switch S is closed, the equivalent resistance drops to 52.0% of the original value. Determine the value of R (in Ω).
c) What If? What would the voltage (in V) between points a and b have to be for 200 W to be delivered to the circuit when the switch is closed? Assume that R has the value found in part (b).
Transcribed Image Text:R
90.0 N
10.0 N
S
a
b
10.0 N
90.0 N
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