A combination of three resistors R,, R2 and R3 in series is connected across a voltage source Vr. The voltage drop across R, and R3 are 10 V and 36 V, respectively. If the current supplied by the source voltage is 1.4 A and the total power supplied by the source is 70 W, Calculate the following: A. The value of Vr and the voltage drop across R2 (Ans. VT = 50 V, V2 = 4 V) B. The equivalent resistance across the voltage source, and the values of R,, R2 and R3 (Ans. Req C. The power dissipated by each resistor (Ans. P1 = = 50.4 W) %3D = 35.7143 N, R¡ = 7.1429 N, R2 = 2.8571 N, R3 = 25.7143 N) 14 W, P2 = 5.6 W, P3 %3D %3D

A combination of three resistors R,, R2 and R3 in series is connected across a voltage source Vr. The voltage drop across R, and R3 are 10 V and 36 V, respectively. If the current supplied by the source voltage is 1.4 A and the total power supplied by the source is 70 W, Calculate the following: A. The value of Vr and the voltage drop across R2 (Ans. VT = 50 V, V2 = 4 V) B. The equivalent resistance across the voltage source, and the values of R,, R2 and R3 (Ans. Req C. The power dissipated by each resistor (Ans. P1 = = 50.4 W) %3D = 35.7143 N, R¡ = 7.1429 N, R2 = 2.8571 N, R3 = 25.7143 N) 14 W, P2 = 5.6 W, P3 %3D %3D

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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Question

A combination of three resistors R,, R2 and R3 in series is connected across a voltage source
Vr. The voltage drop across R, and R3 are 10 V and 36 V, respectively. If the current supplied
by the source voltage is 1.4 A and the total power supplied by the source is 70 W, Calculate
the following:
A. The value of Vr and the voltage drop across R2
(Ans. VT = 50 V, V2 = 4 V)
B. The equivalent resistance across the voltage source, and the values of R,, R2 and R3
(Ans. Req
C. The power dissipated by each resistor
(Ans. P1 = = 50.4 W)
%3D
= 35.7143 N, R¡ = 7.1429 N, R2 = 2.8571 N, R3 = 25.7143 N)
14 W, P2 = 5.6 W, P3
%3D
%3D

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