Physics-
General
Easy
Question
An inductor having self-inductance L with its coil resistance R is connected across a battery of emf 
. When the circuit is in steady state at t = 0 an iron rod is inserted into the inductor due to which its inductance becomes nL (n > 1)
After insertion of rod which of the following quantities will change with time?
1) Potential difference across terminals A and B.
2) Inductance.
3) Rate of heat produced in coil
- only (A)
- (A) & (C)
- Only (C)
- (A), (B) & (C)
The correct answer is: Only (C)
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