Question Detail
Question
The plane of a conducting wire loop is parallel to x-y plane. B field in z-direction. Which action will NOT change magnetic flux?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Rotation about z-axis (parallel to B) does not change angle between B and normal → flux unchanged.
Hint
Flux = BA cosθ, θ unchanged if rotation axis ∥ B.