Multiple Choice
The figure shows a cross section of three parallel wires each carrying a current of 20 A.The currents in wires A and B are out of the paper,while that in wire C is into the paper.If the distance R = 5.0 mm,what is the magnitude of the force on a 2.0-m length of wire A? 
A) 23 mN
B) 64 mN
C) 32 mN
D) 46 mN
E) 55 mN
Correct Answer:
Verified
Correct Answer:
Verified
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