Answer
$2.55 W$
Work Step by Step
$3.4 *10^{18} $ electrons is $0.2125$ $C$. Multiplying $12*0.2125$ gives an answer of $2.55 W$ because 1 V is 1 Joule/1 Coulomb.
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 27 - Circuits - Problems - Page 795: 9b
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