Home Physics Electrostatic Potential and Capacitance

Electrostatic Potential and Capacitance

Electric potential, potential difference, electric potential due to a point charge, a dipole and
system of charges; equipotential surfaces, electrical potential energy of a system of two point
charges and of electric dipole in an electrostatic field.
Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and
electric polarisation, capacitors and capacitance, combination of capacitors in series and in
parallel, capacitance of a parallel plate capacitor with and without dielectric medium between
the plates, energy stored in a capacitor.

Energy stored in a capacitor

Energy stored in a Capacitor

Energy stored in a capacitor The energy U stored in a capacitor of capacitance C, with charge Q and voltage V is The electric energy density...
Capacitance of a parallel plate capacitor

Capacitance of a Parallel Plate Capacitor

Capacitance of a parallel plate capacitor A parallel plate capacitor consists of two large plane parallel conducting plates separated by a small distance. Suppose...
Combination of capacitors in series and in parallel

Combination of Capacitors in Series and in Parallel

Capacitors in series: Fig.a shows capacitors C1 and C2 combined in series. Fig.a. Combination of two capacitors in series The left plate of C1 and...
Capacitors and Capacitance

Capacitors and Capacitance

Capacitors A capacitor (formerly known as condenser) is a device that can store electronic charge and energy. All capacitors consist of a combination of...
Dielectrics and Polarisation

Dielectrics and Polarisation

Dielectrics Dielectrics are non-conducting substances. In contrast to conductors, they have no or the negligible number of charge carriers. In a dielectric, free movement of...
Electrostatics of Conductors

Electrostatics of Conductors

Electrostatics of Conductors Conductors contain mobile charge carriers. In metallic conductors, these charge carriers are electrons. In a metal, the outer (valence) electrons part away...
Potential Energy

Potential Energy

Potential Energy in an External Field The potential energy of a single charge: The external electric field E and the corresponding external potential V may vary...
Equipotential surfaces

Equipotential Surfaces

Equipotential surfaces Surface over which the electric potential is same everywhere is called an equipotential surface. Equipotential surfaces are the graphical way to represent...
Electrostatic Potential

Electrostatic Potential

We know that central forces are conservative in nature i.e., work done on any particle moving under the influence of conservative forces does not...