A rectangular loop of wire with sides H = 36 cm and W = 63 cm carries current I2

Question

A rectangular loop of wire with sides H = 36 cm and W = 63 cm carries current I2 = 0.398 A. An infinite straight wire, located a distance L = 39 cm from segment ad of the loop as shown, carries current I1 = 0.619 A in the positive y-direction.

1) What is Fad,x, the x-component of the force exerted by the infinite wire on segment ad of the loop?

2) What is Fbc,x, the x-component of the force exerted by the infinite wire on segment bc of the loop?

3) What is Fnet,y, the y-component of the net force exerted by the infinite wire on the loop?

Another infinite straight wire, aligned with the y-axis is now added at a distance 2L = 0.78 cm from segment bc of the loop as shown. A current, I3, flows in this wire. The loop now experiences a net force of zero.

4) What is the direction of I3?

5) What is the magnitude of I3?

Explanation / Answer

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