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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

54
42
37
45

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Electrostatic and Capacitance
A condenser suitable for D.C. only is

Poled aluminium electrolytic condenser
Oil impregnated paper condenser
Metallic paper capacitor
Metallic plate variable gang condenser

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Electrostatic and Capacitance
“The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface”.The above statement is associated with

Lenz’s law
Kirchhoff's law
Gauss’s law
Faraday’s law

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Electrostatic and Capacitance
The relative permittivity has the following units

F/m
Wb/m
m/F
no units

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Electrostatic and Capacitance
A unit tube of flux is known as tube

Michale
Farady
Newton
None of the listed here

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Electrostatic and Capacitance
The lines of force due to charged particles are

sometimes curved
None of these
always curved
always straight

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