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Two Parallel Wires, 4 Cm Apart, Carry Currents of 2

Question 18

Multiple Choice

Two parallel wires, 4 cm apart, carry currents of 2 A and 4 A respectively, in the same direction.The force per unit length of one wire on the other is:


A) 1*10-3 N/m, repulsive
B) 1 * 10-3 N/m, attractive
C) 4 *10-5 N/m, repulsive
D) 4 *10-5 N/m, attractive
E) none of these

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