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Electrostatic and Capacitance

Electrostatic and Capacitance
Dielectric strength of a material depends on

all of the listed here
thickness
moisture content
temperature

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Electrostatic and Capacitance
Two series capacitors (one 2 µF, the other of unknown value) are charged from a 24 V source. The 2 µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is

4 µF
2 µF
8 µF
1 µF

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Electrostatic and Capacitance
Paper capacitors usually have a tolerance of

± 5%
± 15%
None of the listed here
± 10%

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Electrostatic and Capacitance
Mica capacitors are characterised by all of the following except

low losses
low leakage reactance
stable operation
accurate value

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Electrostatic and Capacitance
A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is

0.6 s
1.2 s
0.8 s
0.4 s

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Electrostatic and Capacitance
Electric displacement is a______quantity.

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

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