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A parallel plate capacitor of capacitanc...

A parallel plate capacitor of capacitance 90 pF is connected to a battery of emf 20 V. If a dielectric material of dielectric constant `K= (5)/(3)` is inserted between the plates, the magnitude of the induced charge will be :

A

`1.2nC`

B

0.3nC

C

2.4nC

D

0.9nC

Text Solution

Verified by Experts

The correct Answer is:
A
Magnitude of induced charge is gicen by
`Q'=(K-1)CV_(0)=((5)/(3)-1)90xx10^(-12)xx20=1.2xx10^(-9)C implies Q'=1.2nC`
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