MHT CET · Physics · Capacitance
A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it is Q coulomb. When potential across the capacitor is reduced by \(V_1\) volt, the charge stored in it becomes \(Q_1\) coulomb. The potential V is
- A \(\frac{Q V_1}{Q-Q_1}\)
- B \(\frac{Q_1 V_1}{Q+Q_1}\)
- C \(\frac{Q_1}{Q}\)
- D \(\frac{\mathrm{Q}}{\mathrm{Q}_1}\)
Answer & Solution
Correct Answer
(A) \(\frac{Q V_1}{Q-Q_1}\)
Step-by-step Solution
Detailed explanation
\(C = \frac{Q}{V}\) \(C = \frac{Q_1}{V - V_1}\)
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