The loop, having rotated by 45°, rotates clockwise another 30°, so that the norm

Question

The loop, having rotated by 45°, rotates clockwise another 30°, so that the normal to the plane points at an angle of 75° with respect to the direction of the magnetic field.?

EXERCISE HINTS: GETTING STARTED | I'M STUCK! The loop, having rotated by 45°, rotates clockwise another 30, so that the normal to the plane points at an angle of 75° with respect to the direction of the magnetic field. (a) Find the magnetic flux through the loop when ? = 75° What factors determine the magnetic flux through a loop? Wb (b) Find the change in magnetic flux during the rotation from 45° to 75° What factors affect the change in flux through a rotating loop? Wb

Explanation / Answer

When theta = 75 degrees, So, flux is area*field*cos(theta) = 0.196*0.360*cos75 = 0.01826 Wb

Also, when theta = 45 degrees, flux is area*field*cos(theta) = 0.196*0.360*cos45 = 0.0499 Wb.

So, change in magnetic flux during the rotation from 45 degrees to 75 degrees = 0.01826 Wb - 0.0499 Wb = -0.03164 Wb

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