Which is the most superior dielectric out of the following ?
A. Air
B. Glass
C. Bakelite
D. Paper
Answer: Option B
Solution (By Examveda Team)
A dielectric is an insulating material that can withstand electric stress without breakdown.The superiority of a dielectric is judged mainly by its dielectric strength and insulating capability.
Among the given options, glass has a very high dielectric strength and excellent insulating properties compared to air, paper, and bakelite.
Air has the lowest dielectric strength, while paper and bakelite are moderate dielectrics but inferior to glass.
Therefore, glass is the most superior dielectric among the given options, making Option B the correct answer.
This Question Belongs to Electrical Engineering >> Electrostatics
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Related Questions on Electrostatics
For making a capacitor, it is better to select a dielectric having
A. low permittivity
B. high permittivity
C. permittivity same as that of air
D. permittivity slightly more than that of air
The power dissipated in a pure capacitor is
A. zero
B. proportional to applied voltage
C. proportional to value of capacitance
D. both (B) and (C) above
A. remain uncharged
B. decrease
C. increase
D. become zero
Which of the following capacitors will have the least value of breakdown voltage ?
A. Mica
B. Paper
C. Ceramic
D. Electrolytic
Correct answer wil be GLASS