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The capacity of a parallel plate cond...

The capacity of a parallel plate condenser is 15 ` mu ` F when the distance between its plates is 6 cm. if the distance between the plates is reduced to 2 cm, then the capacity of this prarallel condenser will be

A

`15 muF`

B

`30 muF`

C

`45 muF`

D

`60 muF`

Text Solution

Verified by Experts

The correct Answer is:
C
`C=(Aepsilon_0)/d implies C prop1/d`
`implies C_1/C_2=d_2/d_1implies 15/C_2=2/6 implies C_2 = 45muF`
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