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Questions  

A parallel plate condenser has a capacitance 50 μF in air and 110 μF 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

detailed solution

Correct option is D

Cmedium =KCair ⇒K=Cmedium Cair =11050=2.20

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