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Electrostatic and Capacitance

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

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

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Electrostatic and Capacitance
The ability of charged bodies to exert force on 6ne another is attributed to the existence of

electrons
neutrons
protons
electric field

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Electrostatic and Capacitance
Dielectric strength ______ with increasing thickness

increases
remains unaltered
None of these
decreases

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Electrostatic and Capacitance
When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of

8 joules
2 joules
6 joules
4 joules

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Electrostatic and Capacitance
If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be

400
1600
1200
800

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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

37
54
45
42

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