Answer
(c) it increases by six times
Work Step by Step
Using Ohm's law :-
Initial , $Ii=\frac{V}{R}$
Final, $If=2\times\frac{V}{\frac{R}{3}}=6\times\frac{V}{R}=6Ii$
Hence, the current increases 6 times.
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 - Multiple Choice Questions - Page 617: 16
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