What is Inductor? Definition and Types of Inductor

Inductor: Definition, Theory and Types

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What is Inductor? An inductor is an energy storage device which stores energy in form of magnetic field or An inductor is a passive electrical component that thwarts the changes in electrical current that goes through it. If you want to know about inductors other than inductor definition such as theory and types of inductor, you must read this article carefully.

If a time varying current flowing through a coil there is an emf induced in it. The prompted emf over the curl is is directly proportional to the rate of progress of current regarding time. Because of the property prompting emf, a wide range of electrical loop can be alluded inductor.

What is Inductor? Definition, Theory and Types of Inductor

A simple inductor is made up of a coil of wire. This coil temporarily stores energy in the magnetic field owing to the resistance to change of the inductor. This gives adjustment to an electrical supply.

Inductors are utilized in different types of power supply devices, just as in capacitors and remote correspondence setups. There is additionally some exploration on how induction can be used to encourage remote charging, where electromagnetic vitality might be channeled starting with one station then onto the next over the air.

Types of Inductor

There are two types of Inductor, are self induction and mutual induction.

Self Induction

When time varying current flows in a coil the time varying flux is produced and this varying will interface with that loop itself and accordingly there will be emf incited in the coil itself. This type of Inductor is called self induction.

Mutual Induction

When time varying current flows in a coil it produces time varying flux as we have already told. This time varying flux may link with another nearby coil. Because of this flux linkage there will be an actuated emf in the second coil.

This type of electrical induction is called mutual induction. Hence mutual induction can be characterized as the induction of emf in one coil because of time shifting current flowing in any other nearby coil.

See Also: Variable Resistor: Definition, Function and Types

Theory of Inductor

Theory of inductor is, A current through a conductor produces a magnetic field surround it. The quality of this field relies on the estimation of current going through the conductor.

The direction of the magnetic field is discovered utilizing the correct hand hold rule, which appeared. The flux pattern for this magnetic field would be number of concentric hover opposite to the location of current.

magnetic field due to current

Now if we wound the conductor in the form of a coil or solenoid, it can be assumed that there will be concentric circular flux lines for each turn of the coil as shown.

But it is not possible practically, as if concentric circular flux lines for each turn exist, they will meet one another. In any case, since lines of flux cannot converge, the flux lines for an individual turn will misshape to shape total flux loops around the whole coil as shown. This flux pattern of a current carrying coil is similar to a flux pattern of a bar magnet as shown.

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inductive coil

Now if the current through the coil gets changed, the magnetic flux produced by it will also get changed at the same rate. As the flux already surrounds the coil, this changing flux clearly connects the coil.

Now according to Faraday’s law of electromagnetic induction, if changing flux links with a coil, there would be an initiated emf in it. Again according to Lenz’s law, this actuated emf restricts each reason for delivering it. Hence, the induced emf is in opposite of the applied voltage across the coil.

See Also: Electrical Resistance: Definition, Concept and Unit

Inductor Conclusion

After going through the above portion of theory of inductor we can now establish a inductor definition. I hope you enjoy when reading this article, thank you.