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Electrostatic and Capacitance

Electrostatic and Capacitance
A dielectric material must be

Insulator
Semi conductor
Good conductor
Resistor

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Electrostatic and Capacitance
For closer tolerances which of the following capacitors is usually preferred ?

Paper capacitor
Ceramic disc capacitor
None of these
Mica capacitor

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Electrostatic and Capacitance
The direction of electric field due +0 positive charge is .

towards the charge
away from the charge
both (A) and (B)
None of these

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Electrostatic and Capacitance
In order to remove static electricity from machinery

construct insulated cabins
insulate the machinery
humidify the surroundings
ground the framework

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Electrostatic and Capacitance
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.8 F
0.12 F
0.6 F
0.024 F

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Electrostatic and Capacitance
A paper capacitor is usually available in the form of

Disc
Tubes
Rolled Foil
None of the listed here

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