WBJEE · Physics · Capacitance
A parallel plate capacitor is charged and then disconnected from the charging battery. If the plates are now moved farther apart by pulling at them by means of insulating handles, then
- A the energy stored in the capacitor decreases
- B the capacitance of the capacitor increases
- C the charge on the capacitor decreases
- D the voltage across the capacitor increases
Answer & Solution
Correct Answer
(D) the voltage across the capacitor increases
Step-by-step Solution
Detailed explanation
We know that The parallel plate capacitor \(C=\frac{\varepsilon_{0} \cdot A}{d}\) When \(d\) (distance between two parallel plate) increase, then \(C\) will be decrease \(\because\) \(Q=C V \quad\) where \(Q=\) constant \(\therefore\) The voltage across the capacitor increases.
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