Capacitor – Voltage & Charge on Capacitor, Capacitance

Capacitor is a device that stores the electrical energy. It is also named condenser. Any two conductors of any shape, separated by an insulator (or vacuum) forms capacitor.

The symbols of capacitor are

Voltage of Capacitor is potential difference between two conductors.

Where V1 and V2 are the potential of two conductors.

Now onwards we can call is as V.

Charge on Capacitor Charge Q on a capacitor means we are referring to the magnitude of the charge on each plate. Net charge on a capacitor is always Zero.

Capacitance of a capacitor is defined as the magnitude of the charge Q on any plate divided by the magnitude of the potential difference V between the plates i.e., C = Q/V

Capacitance is a slope of V-Q curve, mainly of three types – Spherical, Cylindrical and Parallel plate.

Capacitance charge given to a conductor increases it’s potential.