Given: a parallel plate capacitor with a thin metal plate P inserted in between such that it touches the two plates.
When two plates of a capacitor are connected by a conductor) redistribution of charge takes place and both plates acquire same potential.
Thin metal plate P is a conductor and when connecting it to both plates of capacitor, charges gets neutralized and both the plates acquire same potential.
∴ potential difference = 0
We know that,
V is the potential difference across capacitor
Q=charge on the capacitor
∴ Capacitance of the capacitor becomes infinite and it can hold any amount of charge.
Thus, a thin metal plate p is inserted between the plates of a parallel plate capacitor of capacitance C in such a way that its edge touch the two plates. The capacitance now becomes ∞.
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