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A parallel plate condenser has a capacit...

A parallel plate condenser has a capacitance `50 muF` in air and `100 muF` when immersed in an oil. The dielectric constant `k` of the oil is

A

` 0.45`

B

` 0.55 `

C

` 1.10`

D

` 2.20 `

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The correct Answer is:
D
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