According to Faraday's law, what is the induced emf proportional to?

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Faraday's law of electromagnetic induction states that the induced electromotive force (emf) in any closed circuit is directly proportional to the rate of change of magnetic flux through that circuit. This is a fundamental principle in electromagnetism, as it explains how changing magnetic fields can generate electric currents.

The rate of change of magnetic flux refers to how quickly the magnetic field passing through a surface area is changing over time, which can occur due to variations in the strength of the magnetic field, changes in the area of the surface, or a change in the angle between the field lines and the surface. Therefore, when the magnetic flux changes rapidly, the induced emf will be greater.

Understanding this concept is vital in applications such as electromagnetic generators, where mechanical energy is converted to electrical energy through the induction process, demonstrating the practical implications of this law in technology and energy production.

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