Question

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
• B. 2 C
• C. 0
• D. infinite

Answer 1

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, $C=\frac{Q}{V}=\frac{Q}{0}=\infty$