A combination of three resistors R1,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. V, = 50 V, V, = 4 V) B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3 (Ans. Reg = 35.7143 N, R, = 7.1429 N, R2 = 2.8571 N, R3 = 25.7143 N) C. The power dissipated by each resistor |(Ans. P, = 14 W, P2 = 5.6 W, P3 = 50.4 W)

A combination of three resistors R1,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. V, = 50 V, V, = 4 V) B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3 (Ans. Reg = 35.7143 N, R, = 7.1429 N, R2 = 2.8571 N, R3 = 25.7143 N) C. The power dissipated by each resistor |(Ans. P, = 14 W, P2 = 5.6 W, P3 = 50.4 W)

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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Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

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In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

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A combination of three resistors R1,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. V, = 50 V, V, = 4 V)
B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3
(Ans. Reg = 35.7143 N, R, = 7.1429 N, R2 = 2.8571 N, R3 = 25.7143 N)
C. The power dissipated by each resistor
|(Ans. P, = 14 W, P2 = 5.6 W, P3 = 50.4 W)

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