Part of a single rectangular loop of wire with dimensions shown in the (Figure 1

Question

Part of a single rectangular loop of wire with dimensions shown in the (Figure 1) is situated inside a region of uniform magnetic field of 0.390T . The total resistance of the loop is 0.530? .

Part of a single rectangular loop of wire with dimensions shown in the (Figure 1) is situated inside a region of uniform magnetic field of 0.390T . The total resistance of the loop is 0.530? . Calculate the force required to pull the loop from the field (to the right) at a constant velocity of 7.70m/s . Neglect gravity.

Explanation / Answer

F = I L B

E = N B L V, V = I R

I = E / R = N B L V / R

F = [N B L V / R] [L B] = N B2 L2 V / R

= (1 * 0.3902 * 0.352 * 7.70) / 0.530

F = 0.271 N

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