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Two identical air filled parallel plate ...

Two identical air filled parallel plate capacitors are charged to the same potential in the manner shown by closing the switch S. If now the switch S is opened and the space between the plates is filled with a dielectric of relative permittivity `epsilon_(t)`, then

A

the potential difference as well as charge on each capacitor goes up by a factor `epsilon_(r)`

B

the potential difference as well as the charge on each capacitor goes down by a factor `epsilon_(r)`

C

the potential difference across A remains constant and the charge on B remains unchanged

D

the potential difference across B remains constant, while the charge on A remains unchanged

Text Solution

Verified by Experts

The correct Answer is:
C
When switch S is opened, capacitor A is still connected with battery. Therefore, potential difference across A remains constant. As B is disconnected from battery, charge on B remains fixed.
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