Question

A parallel-plate capacitor is disconnected from a battery, and the plates are pulled a small distance farther apart. Does Q increase, decrease, or stay the same?

Answer 1

Answer:

Q stay the same

Explanation:

Charging of capacitor is done by battery . If battery is disconnected , charging will stop . There will not be any discharging as plates are separate . So pulling the plates apart will not affect the charge lying on the capacitor . It will decrease its capacity and increase its potential , keeping its charge constant.