How EMF is induced? Types of induced EMF.

There are two types of Induced EMF,

1. Statically Induced EMF

2. Dynamically Induced EMF

Statically Induced EMF is two types,

1. Self-induced emf

2. Mutually induced emf

Statically Induced EMF:

If a stationary conductor(conductor does not change its position) placed in a changing magnetic field as a result of the flux linkage with conductor changes, therefore, an EMF induces in this conductor. This type of EMF is called Statically Induced EMF. In this case conductor and magnetic field both stationary that means they not changing their position but the flux linkage with the conductor changes. As both conductor and magnetic field are stationary that's why it is called statically induced emf.

In this case, only AC supply can be given.

Application: Transformers

Dynamically Induced EMF:

When the conductor is moving and magnetic field stationary or magnetic field moving and conductor stationery or both of them moving then the induced emf is known as Dynamically Induced EMF.

As the induced EMF caused by the relative motion of the conductor and magnetic field that's why it is called Dynamically Induced EMF.

In this case AC or DC both supply can be given.

Application: Motor, Generator

Self-induced EMF:

If an EMF induced in a coil due to the change of flux produced by it linking with its own turns then it is called Self-induced EMF. That means the flux and EMF produces in the same coil.

Mutually induced EMF:

If an EMF induced in a coil due to the change of flux produced by another coil but linking with it then it is called Mutually induced EMF.

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Sunday, October 14, 2018

How EMF is induced? Types of induced EMF.