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Electrostatic and Capacitance

Electrostatic and Capacitance
Dielectric constant for mica is nearly

3 to 8
200
1 to 2
100

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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

42
45
54
37

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Electrostatic and Capacitance
When a dielectric is placed in an electric field the field strength

None of the listed here
Remains same
Decrease
Increase

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Electrostatic and Capacitance
Dielectric strength of a material depends on

moisture content
temperature
all of the listed here
thickness

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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
A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

100 KV/m
10 KV/m
50 KV/m
30 KV/m

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