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Electrostatic and Capacitance

Electrostatic and Capacitance
In a cable capacitor, voltage gradient is maximum at the surface of the

Conduction
Insulator
Earth
Sheath

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

Rolled Foil
None of the listed here
Tubes
Disc

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Electrostatic and Capacitance
A 0.00022 F capacitor equals how many micro-farads?

220 µF
22,200 µF
22 µF
2,200 µF

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Electrostatic and Capacitance
Electric displacement is a______quantity.

Both scalar & vector
Scalar quantity
None of the listed here
Vector quantity

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Electrostatic and Capacitance
To prevent the generation of static charges on rubber or flat leather

Surface is moistened
Talcum powder is sprayed on the surface
Conductive dressing is done
Oil compound dressing is done

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Electrostatic and Capacitance
A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

VR = VC
VR and VC = 0
VC > VR
VR > VC

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