Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 21 - Electric Current and Direct-Current Circuits - Problems and Conceptual Exercises - Page 757: 58

Answer

$0.9A$ Clockwise

Work Step by Step

We can find the magnitude and direction of the required current according to Kirchhoff's Mesh rule as follows: $I(8.50\Omega)+I(6.22\Omega)+I(15.1\Omega)=15.0V+11.5V$ This simplifies to: $I=\frac{26.5V}{29.82\Omega}$ $I=0.9A$ The positive value of the current shows that the direction of the current is clockwise.
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