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Electrostatic and Capacitance

Electrostatic and Capacitance
A capacitance is a circuit component that opposes the change in circuit

None of the listed here
Voltage
Impedance
Current

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Electrostatic and Capacitance
Air capacitors are generally available in the range

100 to 500 pF
1 to 20 pF
10 to 400 pF
200 to 300 pF

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Electrostatic and Capacitance
Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is

1.6 x 1015 m/s2
1.76 x 1015 m/s2
1.5 x 1015 m/s2
0.56 x 1015 m/s2

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

KV
KVAR
KVA
KW

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Electrostatic and Capacitance
When the voltage across a capacitor is tripled, the stored charge

Is cut to one-third
Stays the same
Triples
Doubles

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Electrostatic and Capacitance
The absolute permittivity of free space is given by

8.854 x 1(T9 F/m)
8.854 x KT11 F/m
8.854 x 10?12 F/m
8.854 x 1(T10 F/m)

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