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A parallel plate air capacitor has capac...

A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference V is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is

A

`(C^(2)V^(2))/(2d^(2))`

B

`(C^(2)V^(2))/(2d)`

C

`(CV^(2))/(2d)`

D

`(CV^(2))/(d)`

Text Solution

Verified by Experts

The correct Answer is:
C
Force between plate
of capacitor
`F=qE`
`=q((q)/(2Ain_(0)))`
`F=(q^(2))/(2Ain_(0))`
`thereforeq=CV`
`F=(C^(2)V^(2))/(2Ain_(0))`
`F=(((Ain_(0))/(d))CV^(2))/(2Ain_(0))`
`F=(CV^(2))/(2d)`
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