Transformer effect

The transformer effect is one of the processes by which an electromotive force (e.m.f.) is induced. In the transformer effect, electromotive force is induced in a stationary circuit by a changing magnetic field. In a transformer, a changing electric current in a primary coil creates the changing magnetic field that induces a current in a secondary coil.

This process is one of two ways in which electromagnetic fields can induce an electromotive force. The other is the generator effect (motional emf), which relies on a conductor moving in a static magnetic field, leading to a rate of change of flux, dΦ/dt.

Both effects can be explained further by Faraday's law of electromagnetic induction. The sign of the induced current is given by Lenz's Law.

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📰 Article(s) of the same category(ies)

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