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Electrostatic and Capacitance

Electrostatic and Capacitance
Which of the following capacitors will have the least value of breakdown voltage ?

Mica
Paper
Air
Electrolytic

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Electrostatic and Capacitance
When the plate area of a capacitor increases,

The capacitance increases
The voltage it can withstand increases
The capacitance decreases
The capacitance is unaffected

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Electrostatic and Capacitance
Permittivity is expressed in

Weber/sq-m
Farad/meter
Weber/meter
Farad/sq-m

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Electrostatic and Capacitance
While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is

Alright
Short-circuit
Open-circuit
Leaky

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Electrostatic and Capacitance
The inverse of capacitance is called

susceptance
elastance
conductance
reluctance

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Electrostatic and Capacitance
Dielectric strength of mica is

10 to 20 kV/mm
30 to 50 kV/mm
300 to 500 kV/mm
50 to 200 kV/mm

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