A light bulb and an inductor coil are connected to an ac source through a key, as shown in the figure below. The key is closed, and after sometime, an iron rod is inserted into the interior of the inductor. The glow of the light bulb
Text Solution
Verified by ExpertsThe correct answer is:
B
As iron rod inserted, L increases, I decreases, power in R (bulb) decreases.
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