College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 17 - Electric Current and Resistance - Learning Path Questions and Exercises - Exercises - Page 619: 13

Answer

a). Since both conventional currents are to the left, they add to create a net current to the left, so the answer is (2). b). Current due to protons = $\frac{8.3C}{4.5s}=1.8A$ to the left, c). Current due to electrons = $\frac{6.7C}{4.5s}=1.5A$ to the left, d). Total current = $1.8+1.5=3.3A$ to the left.

Work Step by Step

a). Since both conventional currents are to the left, they add to create a net current to the left, so the answer is (2). b). Current due to protons = $\frac{8.3C}{4.5s}=1.8A$ to the left, c). Current due to electrons = $\frac{6.7C}{4.5s}=1.5A$ to the left, d). Total current = $1.8+1.5=3.3A$ to the left.
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