Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
In the circuit shown below, all the inductors (assumed ideal) and resistors are identical. The current through the resistance on the right is I after the key $\mathrm{K}$ has been switched on for a long time. The currents through the three resistors(in order, from left to right) immediately after the key is switched off are
PhysicsAlternating CurrentKVPYKVPY 2015 (SB/SX)
Options:
  • A $2 I$ upwards, $I$ downwards and $I$ downwards.
  • B $2 I$ downwards, $I$ downwards and $I$ downwards.
  • C $I$ downwards, $I$ downwards and $I$ downwards
  • D $0, I$ downwards and $I$ downwards
Solution:
1773 Upvotes Verified Answer
The correct answer is: $2 I$ upwards, $I$ downwards and $I$ downwards.
As current does not change through inductor immediately. It remains I through right \& middle resistance \& 2 i upwards in left resistance?

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.