Ferrite Core one of the Best Leading Supplier in Delhi, India In electronics, there are multiple uses of a ferrite core is a type of magnetic core raw material use of ferrite on which the transform of electric transformers and many other wound components. Ferrite Core used for its characteristics. A ferrite core is a type of magnetic core made of ferrite that is used to form the windings of electric transformers and other wound components like inductors in electronics. It's employed because it has a high magnetic permeability and a low electrical conductivity (which helps prevent eddy currents). They are widely employed in the cores of RF transformers and inductors in applications such as switched-mode power supplies and ferrite loopstick antennas for AM radio receivers due to their low losses at high frequencies.