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The capcity of a parallel plate condense...

The capcity of a parallel plate condenser is `10 muF`, when the distance between its plates is `8 cm`. If the distance between the plates is reduced to `4 cm`, then the capacity of this parallel plate condenser will be

A

`5 muF`

B

`10 muF`

C

`20 muF`

D

`40 muF`

Text Solution

Verified by Experts

The correct Answer is:
C
`C prop (1)/(d) rArr (C_(1))/(C_(2)) = (d_(2))/(d_(1))`, so `(C_(2))/(10) = (8)/(4) rArr C_(2) = 20 muF`
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