Faraday's law of electromagnetic induction states that a change in magnetic field induces an electromotive force (emf) in a nearby conductor. This emf causes an electric current to flow in the conductor if it forms a closed loop.
Faraday's law can be expressed mathematically as:
ε = -dΦ/dt
where ε is the induced emf, Φ is the magnetic flux through the surface bounded by the conductor, and dΦ/dt is the rate of change of magnetic flux with respect to time.
The magnitude of the induced emf is proportional to the rate of change of the magnetic flux, and the direction of the induced current is determined by Lenz's law, which states that the induced current opposes the change in magnetic flux that produced it.
Faraday's law is the basis for the operation of generators, transformers, and many other electrical devices. It plays a key role in understanding how electric currents are induced in conductors by changing magnetic fields.
Explain Faraday's Law
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