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A parallel plate condenser has initially...

A parallel plate condenser has initially air medium between the plates. If a slab of dielectric constant `5` having thickness half the distance of separation between the plates is introduced, the percentage increase in its capacity is.

A

`33.3%`

B

`66.7%`

C

0.5

D

0.75

Text Solution

Verified by Experts

The correct Answer is:
B
`C_(0) = (epsi_(0)A)/(d), C= (in_(0)A)/(d-t (1-1//k))`
`Delta C% =(C -C_(0))/(C_(0)) xx 100%`
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