The magnetic flux through a loop perpendicular to a uniform magnetic field will change
A) if the loop is replaced by two loops, each of which has half of the area of the original loop.
B) if the loop moves at constant velocity while remaining perpendicular to and within the uniform magnetic field.
C) if the loop moves at constant velocity in a direction parallel to the axis of the loop while remaining in the uniform magnetic field.
D) if the loop is rotated through 180 degrees about an axis through its center and in the plane of the loop.
E) in none of the above cases.

Question

Quizplus · Accepted Answer

The magnetic flux through a loop changes when the angle between the magnetic field and the normal to the loop's surface changes. Rotating the loop 180 degrees about an axis in its plane changes this angle, altering the flux through it.

The Magnetic Flux Through a Loop Perpendicular to a Uniform