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When a parallel plate capacitor is conne...

When a parallel plate capacitor is connected across a d.c. battery. Explain briefly how the capacitor gets charged .

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When a parallel plate capacitor is connected to a battery, positive charge from + ve terminal of battery flows and charge the plate A of the capacitor . As plate B of capacitor is close to plate A , an equal amount of negative charge is induced on inner surface of plate B and positive charge is induced on outer surface of plate B . However , negative charge coming from -ve terminal of battery nullifies thi positive charge of outer surface of plate B .
Thus , effectively we get equal and opposite charges on inner surfaces of plates A and B of the capacitor and we say that the capacitor is charged .
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