The production of electromotive force (emf) - loosely, a voltage - in a conductor, either by moving the conductor in a magnetic field or by changing the field around the conductor. The emf induced in a circuit equals the rate of change of magnetic flux through it, multiplied by ?1 (Faraday's law, 1831). Induction is crucial to the operation of transformers, generators, and motors.
| Electromagnetism | |
| Magnetism | |
| Electrostatics | |
|---|---|
| Electric charge | |
| Coulomb's law | |
| Electric field | |
| Gauss's law | |
| Electric potential | |
| Magnetostatics | |
| Ampere's law | |
| Magnetic field | |
| Magnetic moment | |
| Electrodynamics | |
| Electric current | |
| Lorentz force law | |
| Electromotive force | |
| Electromagnetic induction | |
| Faraday-Lenz law | |
| Displacement current | |
| Maxwell's equations | |
| Electromagnetic field | |
| Electromagnetic radiation | |
| Electrical circuits | |
| Electrical conduction | |
| Electrical resistance | |
| Capacitance | |
| Inductance | |
| Impedance | |
| Resonant cavities | |
| Waveguides | |
| This box: view • talk • edit | |
Electromagnetic induction is the production of an electrical potential difference (or voltage) across a conductor situated in a changing magnetic flux.
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