Answered: b) For the circuit shown below, R1 =…

b) For the circuit shown below, R1 = 72, R2 = 3N, R3 = 22, R4 = 40 and the battery voltage is 18V. R3 R4 R2 R1 V i) The equivalent resistance of the circuit is = ii) The source current is =

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 44P: Consider the circuit shown in the preceding problem. Write equations for the power supplied by the...

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Concept explainers

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.

Path of Least Resistance

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.

Question

b) For the circuit shown below, R1 = 70, R2 = 30, R3 = 20,
R4 = 42 and the battery voltage is 18V.
R3
R4
R2
R1
i) The equivalent resistance of the circuit is =
ii) The source current is =
A
iii) The voltage drop across R2 is =
V
iv) The current through R4 is =
A
v) The power dissipated across R1 is =

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