How are eddy currents produced in a transformer?

In a transformer, the magnetic flux created by the primary coil induces a current in the core. This occurs in order to oppose the charge that produced the magnetic flux (Lenz's Law). The currents flowing in the core are called eddy currents. These currents produce heat, using up energy and so causing inefficiency. read more

Eddy currents are locally generated current loops in the transformer core. This happens because transformer core is in close proximity of the varying magnetic field of the primary. Eddy current is a loss. read more

Eddy currents are currents caused by the changing magnetic field. This is exactly the effect that causes currents in the secondary when the magnetic field is changed due to how the primary is driven. Think about the difference between a conductive metal core and another secondary. read more

These circulating currents are called Eddy Currents and the heat produced by this current is called Eddy Current Loss. Since the magnetic material is a conducting material, the emfs circulates currents within the body of the material. read more