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Electromagnetic field


 

In the physics of electromagnetism, an electromagnetic field is a field composed of two related vector fields: the electric field and the magnetic field. When referred to as the electromagnetic field, the field is imagined to encompass all of space; typically an electromagnetic field is considered to be limited to a local area around an object in space.

Related Topics:
Physics - Electromagnetism - Field - Vector - Electric field - Magnetic field - Space

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The vectors (E and B) that characterize the field each have a value defined at every point of space and time. If only the electric field (E) is non-zero, and is constant in time, the field is said to be an electrostatic field. E and B (the magnetic field) are linked by Maxwell's equations.

Related Topics:
Vector - Electric field - Electrostatic field - Maxwell's equations

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Electromagnetic fields can be explained with a quantum basis by quantum electrodynamics.

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