Suppose the plates of a parallel plate capacitor have charges +2Q and -Q initially.

Then if they are connected with a battery of emf V what will be the charge distribution on the plates of capacitor?

I tried it by initially getting the charge distribution. But when the battery is connected i am getting confused.

  • 1
    $\begingroup$ Same as with zero initial charge plus 0.5Q on each plate $\endgroup$ – LLlAMnYP May 25 '16 at 17:22

Start off by considering what the charge distribution would be like without the battery being connected. The charge distribution must be such that there is no electric field inside either of the plates.
The consider which of the charges will change when the battery is connected.


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