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The capacity of a parallel plate condens...

The capacity of a parallel plate condenser without any dielectric is C. If the distance between the plates is doubled and the space between the plates is filled with a substance of dielectric constant 3, the capacity of the condenser becomes:

A

`(3)/(4) C`

B

`(9)/(2)C`

C

`(2)/(3)C`

D

`(3)/(2)C`

Text Solution

Verified by Experts

The correct Answer is:
D
`C=(in_(0)A)/d`
`d'=2d, K=3`
`C'=3/2 C`
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