a 2.4 m segment of wire supplying current to the motor of a submerged submarine

Question

a 2.4 m segment of wire supplying current to the motor of a submerged submarine carries 1050 A and feels a 3.6 N repulsive force from parallel wire to 5.00 cm away. what is the magnitude of the current in the other wire in A? a 2.4 m segment of wire supplying current to the motor of a submerged submarine carries 1050 A and feels a 3.6 N repulsive force from parallel wire to 5.00 cm away. what is the magnitude of the current in the other wire in A? a 2.4 m segment of wire supplying current to the motor of a submerged submarine carries 1050 A and feels a 3.6 N repulsive force from parallel wire to 5.00 cm away. what is the magnitude of the current in the other wire in A?

Explanation / Answer

Force between two parallel wires is given by

F = uo*I1*I2*L/(2*pi*d)

I2 = F*2*pi*d/(uo*I1*L)

I2 = 3.6*2*3.14*5*10^-2/(4*3.14*10^-7*1050*2.4)

I2 = 357.14 Amp.

Let me know if you have any doubt.

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