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Electrostatic and Capacitance

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

Paper
Mica
Air
Electrolytic

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Electrostatic and Capacitance
A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is

92 x 105 V/m
82 x 105 V/m
62 x 105 V/m
72 x 105 V/m

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Electrostatic and Capacitance
A 10 µF, 20 µF, 22 µF, and 100 µF capacitor are in parallel. The total capacitance is

100 µF
152 µF
4.86 µF
2.43 µF

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Electrostatic and Capacitance
The units of capacitance are

Volt/coulomb
Hennry/wb
Hennry
Coulomb/volt

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Electrostatic and Capacitance
A capacitance is a circuit component that opposes the change in circuit

Current
Voltage
Impedance
None of the listed here

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Electrostatic and Capacitance
Of the following capacitors, which one has the highest dielectric constant?

Glass
Air
Paper
Mica

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