Answer
The direction of the current is east.
Work Step by Step
For the net magnetic field to be zero, the direction of the magnetic field due to the current in the wire must be south.
By the right hand rule, the direction of the current is east.
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 29 - Magnetic Fields Due to Currents - Problems - Page 856: 3b
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