A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is
A. 100 kV/m
B. 10 kV/m
C. 5 kV/m
D. 2 kV/m
Answer: Option A
This Question Belongs to Electrical Engineering >> Electrostatics
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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
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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
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