Due to Faraday’s law of electromagnetic induction, Eddy currents produce their magnetic field. According to Lenz’s law, the current direction is such that it will oppose the magnetic field causing it. In the image below, an inducting coil produces a magnetic field. A conductor is brought near this magnetic field, resulting in swirling electrical currents on the conductor’s surface. Since the coil’s magnetic field and the eddy current’s magnetic field are opposite, it results in a magnetic drag.
Properties
Applications
Drawback
Directly proportional to the applied magnetic field’s magnitudeDirectly proportional to the area of the loopDirectly proportional to the rate of change of magnetic fluxInversely proportional to the conductor’s resistance
