Eddy Currents Definition
Eddy currents refer to electrical currents that are induced in a conductive material, such as a metal cup or disc, by a changing magnetic field. This phenomenon is a result of the interaction between the magnetic field and the electrons that move within the material.
The term “eddy” is derived from the swirling motion that the electrical currents tend to produce within the conductive material, as they travel in loops and circles.
Eddy currents can be produced in a number of ways, but one common example is when a magnet is moved across a material such as a metal cup or disc. As the magnet moves, it creates a changing magnetic field, which in turn induces eddy currents within the metal.
These eddy currents can have a number of effects on the material. They can create heat within the metal, which can in turn cause changes in its physical properties. They can also produce magnetic fields of their own, which can interact with the external magnetic field to either repel or attract the magnet.
Eddy currents are important in a number of industrial applications, including in the design of electrical transformers and motors. By understanding the properties of eddy currents, engineers can design electrical systems that are more efficient and effective.
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