Mutual induction

Mutual induction

If two coils of wire are brought into close proximity with each other so the magnetic field from one links with the other, a voltage will be generated in the second coil as a result. This is called mutual inductance when voltage impressed upon one coil induces a voltage in another.

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is defined

defined

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as the property of the coils that enables it to oppose the changes in the current in another coil. With a change in the current of one coil, the flow changes too thus inducing EMF in the other coil. This phenomenon is known as mutual induction.

What is self induced and mutually induced emf?

If an emf is induced without moving either the conductor or the flux, such an In transformers and reactors static emf is induced emf is called statically induced emf. This is classified into two types.1) Self induced emf ( Current changes in the coil itself ) 2) Mutually induced emf ( Action of neighbouring coil )

What is mutual inductance induction?

When changing current in one coil induces an EMF in the other, the phenomenon is called mutual induction. The strength of the EMF induced depends on the mutual inductance of the pair of coils. The S.I. unit of mutual inductance is Henry, the same as that of self-inductance.