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Electrostatic and Capacitance

Electrostatic and Capacitance
The dielectric constant (relative permittivity) of glass is given by

5 to 100
2.0 to 4.0
0.1 to 0.4
0.5 to 1.0

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Electrostatic and Capacitance
XC is inversely proportional to frequency and capacitance.

1

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Electrostatic and Capacitance
The true power in a capacitor is zero.

1

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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
If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because

charging current can flow
varying voltage produces the charging and dicharging currents
of high peak value
discharge current can flow

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Electrostatic and Capacitance
Paper capacitors usually have a tolerance of

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

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