Q. In the inductive circuit given in the figure, the currents rises after the switch is closed. At instant when the current is
image
then potential difference across the inductor will be:

 1454  187 ManipalManipal 2002Alternating Current Report Error

Solution:

Here : Current in the circuit

Resistance Volt
Applied voltage in the circuit
At any constant, the emf of the battery is equal to the sum of potential drop on the resistor and the emf developed in the induction coil.
Hence,

Hence