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A parallel plate capacitor has a capacit...

A parallel plate capacitor has a capacity C. The separation between the plates is doubled and a dielectric medium is introduced between the plates. If the capacity now becomes 2C, the dielectric constant of the medium is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
d. = 2d , C. = 2C
`implies (Aepsilon_0k)/(2d)=2(Aepsilon_0)/d implies k= 4`
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