SSC JE Electrical Engineering 2017 Set 1 Paper

Question : 109 of 200

Marks: +1, -0

For making capacitors, it is better to select a dielectric having _____.

High permittivity
Low permittivity
Permittivity same as that of air
None of these

Solution:

C=∊A/D

A = cross section area of plate
D = Distance between two plate
∊ = permittivity of medium
for making capacitor it is better to use high permittivity material to get high dielectric strength and higher capacitance value for same size.

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