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Electrostatic and Capacitance

Electrostatic and Capacitance
The dielectric constant of glass is given by

None of the listed here
5 to 100
2 to 4
0.1 to 0.4

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Electrostatic and Capacitance
A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is

150 joules
200 joules
50 joules
250 joules

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Electrostatic and Capacitance
Which of the following capacitors is marked for polarity ?

Mica
Air
Paper
Electrolytic

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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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Electrostatic and Capacitance
What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

150 pF
200 pF
50 pF
100 pF

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Electrostatic and Capacitance
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.12 F
0.8 F
0.6 F
0.024 F

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