Electromagnetic Induction — Practice Questions

According to Faraday's law of electromagnetic induction, the induced EMF in a closed loop is:

A rectangular coil of 100 turns, each with area 0.02 m², is placed perpendicular to a uniform magnetic field. If the magnetic field changes from 0.1 T to 0.3 T in 0.5 seconds, calculate the magnitude of induced EMF.

Lenz's law is a consequence of the conservation of:

A conducting rod of length 0.5 m moves with velocity 4 m/s perpendicular to a uniform magnetic field of 0.2 T. Calculate the motional EMF induced across the rod.