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Electrostatic and Capacitance

Electrostatic and Capacitance
The potential gradient across the material of low permittivity is than across the material of high permittivity.

None of these
smaller
both (A) and (B)
greater

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Electrostatic and Capacitance
Dielectric strength of mica is

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

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Electrostatic and Capacitance
Dielectric strength of medium

Increases with moisture content
Is same for all insulating materials
Increases with rise in temperature
None of the listed here

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Electrostatic and Capacitance
A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?

Electrolytic Capacitor
Paper capacitor
All of the listed here
Mica capacitor

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Electrostatic and Capacitance
In order to remove static electricity from machinery

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

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Electrostatic and Capacitance
The capacity of capacitor bank used in power factor correction is expressed in terms of

KW
KVAR
KV
KVA

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