Consider the circuit shown in the figure. A) 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. Find the difference (in Ω) between the two equivalent resistances, Req,open-Req,closed. B) When the switch S is closed, the equivalent resistance drops to 54.0% of the original value. Determine the value of R (in Ω). C) What would the voltage (in V) between points a and b have to be for 160 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. A) 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. Find the difference (in Ω) between the two equivalent resistances, Req,open-Req,closed. B) When the switch S is closed, the equivalent resistance drops to 54.0% of the original value. Determine the value of R (in Ω). C) What would the voltage (in V) between points a and b have to be for 160 W to be delivered to the circuit when the switch is closed? Assume that R has the value found in part (b).

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Introduction

Section: Chapter Questions

Problem 45P: In Figure P1.49, find (a) the side opposite , (b) the side adjacent to . (c) cos , (d) sin , and (c)...

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