A thin metal plate P is inserted between the plates of a parallel plate capacitor of capacitance C in such way that its edges touch the two plates. The capacitance now becomes :
A
C/2
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B
2 C
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C
0
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D
infinite
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Solution
The correct option is D infinite As the plates are connected by a thin metal plate, the potential (V) between the plates is zero. Capacitance, C=QV=Q0=∞