Question

The adjoining figure shows two bulbs $B_{1}$ and $B_{2}$ resistor $R$ and an inductor $L .$ When the switch $S$ is turned off,

• A. Both $B_{1}$ and $B_{2}$ die out promptly
• B. Both $B_{1}$ and $B_{2}$ die out with some delay
• C. $B_{1}$ dies out promptly but $B_{2}$ with some delay
• D. $B_{2}$ dies out promptly but $B_{1}$ with some delay

Answer 1

Answer: (C)

Current in $B_{1}$ will promptly become zero while current in $B_{2}$ will slowly tend to zero.