Three long, straight, parallel wires all lie in the yz plane and each carries a current of 20 A in the positive z direction. The two outer wires are each 4.0 cm from the center wire. What is the magnitude of the magnetic force on a 50-cm length of either of the outer wires?
a. 1.0 mN
b. 0.50 mN
c. 1.1 mN
d. 1.5 mN
e. 2.0 mN
d
Physics & Space Science
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