ElectroMagnetic InductionHard
Question
In the circuit shown switch S is connected to position 2 for a long time and then joined to position 1. The total heat produced in resistance R1 is :
Options
A.
B.
C.
D.
Solution
When the key is at position (2) for a long time ; the energy stored in the inductor is :
UB =
Li02 = 
L. 
= 
This whole energy will be dissipated in the form of heat when the inductor is connected to R1 and no source is connected.
UB =
Li02 = L. = This whole energy will be dissipated in the form of heat when the inductor is connected to R1 and no source is connected.
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