Question

State Lenz’s law for electromagnetic induction. Derive an expression for induced emf in rectengular coil moving perpendicular to non uniform magnetic field with uniform velocity. Draw the necessary diagram. OR
Define impedance. A series L-C-R circuit is connected to an AC source V = V 0 sinw.t.
Derive an expression for impedance using phasor diagram.

Answer 1

The induced emf in a coil is equal to the negative of the rate of change of magnetic flux times the number of turns in the coil. It involves the interaction of charge with magnetic field.