A 500-turn circular coil with an area of 0.050 0 m² is mounted on a rotating frame,which turns at a rate of 20.0 rad/s in the presence of a 0.050 0-T uniform magnetic field that is perpendicular to the axis of rotation.What is the instantaneous emf in the coil at the moment that the normal to its plane is parallel to the field? A)zero B)125 V C)216 V D)250 V

Question

Quizplus · Accepted Answer

The instantaneous emf is zero when the normal to the coil's plane is parallel to the magnetic field because the rate of change of magnetic flux through the coil is zero at that moment.

A 500-Turn Circular Coil with an Area of 0