A rectangular loop of wire lies in the plane formed by the line y = x and the z

Question

A rectangular loop of wire lies in the plane formed by the line y = x and the z = axis. The square has area (slightly shaded) of 280 cm2 so that A = (39. 6t - 39. 6j) x 10 -3 m2. A magnetic field B = 0. 32 T points in the negative x direction. What is the magnetic flux through the square? How many field lines pierce the square? Suppose the square is rotated so that at a later time it is seen to be parallel to the x-. axis The time it takes for the rotation is 0. 025s. What is the average induced EMF in the loop?

Explanation / Answer

a. = B .A = 39.6 e -3 * - 0.32 = - 12.7 e - 3 weber

b.no. of field lines = A B cos 45 = 64 lines/cm2

c. 2 = 0

=12.7 e-3 weber

emf induced = - /t = 0.51 V

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