Answer
56 s
Work Step by Step
$I_{1}=\frac{q_{1}}{t_{1}}=\frac{20\,C}{1.25\times60\,s}=0.27\,A$
Given: $q_{2}=30\,C,$ $I_{2}=2I_{1}=2\times0.27\,A=0.54\,A$
Therefore, $t_{2}=\frac{q_{2}}{I_{2}}=\frac{30\,C}{0.54\,A}=56\,s$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
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: 11
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