@ kamal
below are some of the types of inductor that are used in electrnocs
1- air core inductor – used in tv and radio receivers , offers high resistance .
2- ferro magnetic or iron core inductor – hysteresis and eddy current loosers , used in large industries .
3- ferrite core inductor
4- torroidal core inductor
5- bobbin based inductor
6- multi layer inductor
7- thin film inductor .
HOPE IT CLEARS
ALL THE BEST ..