Electric potential

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Electric potential is a fundamental concept in physics and electromagnetism, defined as the amount of electric potential energy that a charged particle would have if located at a specific point in space. It is also known as the electric potential difference and is measured in volts.

Definition[edit]

The electric potential at a point in space is defined as the work done by an external agent in carrying a unit positive charge from a reference point to that point without any acceleration. It is important to note that the reference point is usually taken at infinity.

Mathematical Representation[edit]

The electric potential V at a point r in a static electric field E is given by the line integral:

V = - ∫ E • dl

where dl is an infinitesimal element of the path.

Relation with Electric Field[edit]

The electric potential is related to the electric field by the equation:

E = - ∇V

where ∇V is the gradient of the electric potential.

Applications[edit]

Electric potential has numerous applications in various fields such as electronics, electrical engineering, and physics. It is used in the design of electric circuits, capacitors, and batteries. It also plays a crucial role in understanding phenomena like electric discharge, electric shock, and electric current.

See Also[edit]

References[edit]

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