As shown in the figure above, a rectangular loop of wire with length L =29.5cm a

Question

As shown in the figure above, a rectangular loop of wire with lengthL=29.5cm and widthW=16.7cm carries a currentI1=1.92A. A very long straight wire in the plane of the loop carries a currentI2=11.5A. The near edge of the loop is parallel to the long wire, and separated from it by a distanced=11.9cm.

What is the magnitude of the net force on the loop due to the current in the straight wire?

What is the magnitude of the net torque on the loop about its center point due to the current in the straight wire?

Explanation / Answer

first calculate force on wire F = µi1i2/2pd= 2 * 1.92 * 11. 5 /0.11 = 371 N b. Torque = A *i1B = l*b) *µ0i1i2/2pd = 0.167 * 0.295 *2 *1.92 *11.5 /0.119 = 18.27 Nm

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