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JAMB UTME

Two long parallel wires X and Y carry currents 3A and 5A respectively. If the force experienced per unit length by X is 5 x 10-5N, the force per unit length experienced by wire Y is

A.
3 x 10-5N
B.
3 x 10-6N
C.
5 x 10-4N
D.
5 x 10-5N

Answer: D

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