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Electrostatic and Capacitance

Electrostatic and Capacitance
A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

Ceases
Increases
Decreases
Remains constant

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

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

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Electrostatic and Capacitance
Five time constants are required for a capacitor to charge fully or discharge fully.

1

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Electrostatic and Capacitance
The potential gradient across the material of low permittivity is than across the material of high permittivity.

greater
None of these
both (A) and (B)
smaller

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Electrostatic and Capacitance
A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance ?

It depends on applied voltage
Both will have identical value of capacitance
Ceramic capacitor
Mica capacitor

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Electrostatic and Capacitance
XC is inversely proportional to frequency and capacitance.

1

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