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
c
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Fill in the blank(s) with correct word
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