1.

Three identical metal plates of area S are at equal distances b as shown. Initially metal plate A is uncharged, while metal plates B and C have respective charges +Q_(0) and -Q_(0) initially as shown. Metal plates A and C are connected by switch K through a resistor of resistance R. the key K is closed at time t = 0 After the steady state is achieved, the charge on plate A is :

Answer»

`(Q_(0))/(2)`
`-(Q_(0))/(2)`
`(Q_(0))/(3)`
`-(Q_(0))/(3)`

SOLUTION :At STEADY state charges on both the CAPACITOR will be equal.Hence charge on plante A is `-Q_0//2`.


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