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Electrostatic and Capacitance

Electrostatic and Capacitance
The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to ______ percent of its value.

37, final
62, initial
37, initial
62, final

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Electrostatic and Capacitance
The bridge used for the measurement of the value of the capacitance is

Hay's bridge
Maxwell bridge
Schering bridge
Wheastone bridge

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Electrostatic and Capacitance
at a point may be defined as equal to the lines of force passing normally through a unit cross section at that point.

Electric intensity
None of these
Electric flux
Magnetic flux density

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Electrostatic and Capacitance
A positive and a negative charge are initially 50 mm apart. When they are moved close together so that they are now only 10 mm apart, the force between them will be

10 times greater than before
5 times greater than before
25 times larger than before
5 times smaller than before

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Electrostatic and Capacitance
The inverse of capacitance is called

reluctance
susceptance
elastance
conductance

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

KV
KVAR
KW
KVA

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