Electrostatics Question 12

Question: A parallel plate condenser has a capacitance $ 50\mu F $ in air and $ 110\mu F $ when immersed in an oil. The dielectric constant $ ‘k’ $ of the oil is [CPMT 1985; J & K CET 2004]

Options:

A) 0.45

B) 0.55

C) 1.10

D) 2.20

Show Answer

Answer:

Correct Answer: D

Solution:

$ C _{medium}=KC _{air} $

therefore $ K=\frac{C _{medium}}{C _{air}}=\frac{110}{50}=2.20 $



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