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

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

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Electrostatic and Capacitance
Capacitance increases with

Increase in plate area and distance between the plates
Increase in plate area and decrease in distance between the plates
Reduction in plate area and distance between the plates
Decrease in plate area and value of applied voltage

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