Topic Category: FARADAY LAW OF ELECTROMAGNETIC INDUCTION

Types of Induced EMF

Now, let us consider the physical reasons behind appearence of induced emf and try to derive the law of induction. The induced emf appears if(a) loop moves in a constant magnetic field called motional emf(b) loop remains at rest in a varying magnetic field called transformers emf.(a) Motional emf : To understand motional emf, let …

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Faraday Law

If the flux of magnetic field across the coil varies with time, an emf is induced in it.The induced emf is equal to negative rate of change of magnetic flux across it. Induced emf where = Magnetic flux So, where S is any surface bounded by the coil. The flux across a loop can change …

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