Voltage, Fields, and Equipotential Surfaces

Voltage, or electric potential, describes electric potential energy per unit charge. It is a scalar quantity, and it helps explain many electrical effects. In practice, the difference in electric potential is what matters most.

Changes in electric potential across space are linked to the electric...

Electric potential defines the energy of a charged particle. It gives rise to electric field and electric force, and is the basis of many electrical phenomena.

The term electrical potential is denoted by the Greek symbol ?. It is a scalar quantity with a sign and magnitude. Any charge creates electric potential in the space around it. It i...