Electrostatic Potential And Capacitance Ques 31
31. A parallel plate air capacitor is charged to a potential difference of $V$ volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates
[2006]
(a) does not change
(b) becomes zero
(c) increases
(d) decreases
Show Answer
Answer:
Correct Answer: 31.(c)
Solution:
- (c) If we increase the distance between the plates its capacity decreases resulting in higher potential as we know $Q=C V$. Since $Q$ is constant (battery has been disconnected), on decreasing $C$, $V$ will increase.
BETA
