A 50-turn circular coil of radius rotates at a constant angular speed of about a…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A 50-turn circular coil of radius

5.0\,\text{cm}

rotates at a constant angular speed of

60\,\text{rad/s}

about a diameter in a uniform

0.12\,\text{T}

magnetic field. At the instant when the plane of the coil is parallel to the magnetic field lines, calculate the magnitude of the induced emf.