Question Detail
Question
The plane of a conducting loop is parallel to x-y plane. B-field is in z-direction. Which action will NOT change magnetic flux?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Rotation about the z-axis keeps the loop parallel to the x-y plane, so the angle between the normal and B remains 0°, flux is unchanged.
Hint
What rotation keeps the flux constant?