[Solved] What will be the permittivity of a medium which has a dielectric constant of 5.4

What will be the permittivity of a medium which has a dielectric constant of 5.4?

a) 4.78*10-11 C2N-1m-2
b) 8.85*10-10C2N-1m-2
c) 4.5*10-10C2N-1m-2
d) 3.2*10-11C2N-1m-2

Answer: a
Explanation: εo=8.854*10-12C2N-1m-2. Therefore the permittivity will be 5.4*8.854*10-12C2N-1m-2 = 4.78*10-11C2N-1m-2. We know that the permittivity of a medium is equal to its relative permittivity multiplied by the absolute permittivity of air. Air has relative permittivity =1.

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