Question Detail
Question
When a wire moves at an angle θ relative to the magnetic field, the motional emf is given by:
Correct Answer
Option B is the correct answer.
Detailed Explanation
When the wire moves at an angle θ to the field, the component of velocity perpendicular to the field is v sin θ, so ε = B L v sin θ.
Hint
Use the perpendicular component of velocity.