A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it is 'Q' C. When potential across a capacitor is reduced by V' volt, the charge stored in it becomes Q' C. The potential V is

Question:

A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it is ‘Q’ C. When potential across a capacitor is reduced by V’ volt, the charge stored in it becomes Q’ C. The potential V is

Options :

(a) QV/Q'
(b) Q'V/Q
(c) QV'/(Q-Q')
(d) QV/Q+Q'

Answer :

Answer Steps :

step 1

step 2

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