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Electrostatic and Capacitance

Electrostatic and Capacitance
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be

120 N
60 N
30 N
40 N

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Electrostatic and Capacitance
Which of the following capacitors has relatively shorter shelf life ?

Mica
Ceramic
Paper
Electrolytic

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Electrostatic and Capacitance
Four 0.15 µF capacitors are in parallel. The total capacitance is

0.15 µF
0.8 µF
0.6 µF
0.30 µF

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

stable operation
low losses
low leakage reactance
accurate value

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Electrostatic and Capacitance
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value

42
45
54
37

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Electrostatic and Capacitance
The unit of dielectric strength is given by

V/m
m/V
m/V2
V2/m

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MORE MCQ ON Electrostatic and Capacitance

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