Force

Question:

A very long straight wire carries a 12-A current eastward and a second very long straight wire carries a 14-A current westward. The wires are parallel to each otherand are 42 cm apart. Calculate the force on a 6.4 m length of one of the wires. (µ0 = 4p × 10-7 T · m/A)
5.1 × 10-6 N
8.0 × 10-5 N
2.2 × 10-4 N
8.0 × 10-7 N
5.1 × 10-4 N

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