In a capacitor circuit, when a dielectric is inserted while voltage is HELD CONSTANT by battery, the CHARGE on capacitor:
AStays same
BDecreases
CIncreases
DBecomes zero
Answer & Solution
Correct answer: C. Increases
With battery connected (V constant), inserting dielectric increases C, hence Q = CV increases (Q grows). Extra charge flows from battery to capacitor. If battery is disconnected first, C increases but Q stays same → V drops.
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