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Electrostatic and Capacitance

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
45
42
54

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Electrostatic and Capacitance
The dielectric constant is the ability of a material to establish an electric field.

1

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Electrostatic and Capacitance
Air capacitors are generally available in the range

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

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Electrostatic and Capacitance
The property of a capacitor to store electricity is called its

charge
capacitance
energy
None of these

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Electrostatic and Capacitance
Dielectric strength ______ with increasing thickness

remains unaltered
increases
decreases
None of these

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Electrostatic and Capacitance
Which of the following materials has the highest value of dielectric constant?

Mica
Glass
Ceramic
Paper

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