Inductors

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                 An inductor is a passive electronic component that stores energy in the form of a magnetic field. This symbol is used to indicate a coil in a circuit diagram. Inductance value is designated in units called the Henry(H). When alternating current flows through a coil, the magnetic flux that occurs in the coil changes with the current. 


           When a second coil is put close to the first coil (with the changing flux), alternating voltage is caused to flow in the second coil by an effect known as "mutual induction". Mutual inductance (inductance) is measured in units of the Henry. The changing magnetic flux in a coil affects itself as well as other coils. This is called self induction, the degree of this self induction is called Self Inductance. 

Different Types Of Inductors:
















High Frequency Coils:

 






Toroidal Coils:

The toroidal coil consists of copper wire wrapped around a cylindrical core. 






          










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