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Why is energy lost in transformers?
Some energy is lost in most machines, in most energy transformations. In the case of transformers, the main problem is eddy currents - unwanted currents, that are minimized, but not eliminated completely, by laminating the iron.
Eddy current in transformer?
Yes, a transformer has eddy currents.
Why transformer core cuts thin sheet?
Transformer cores are made up of insulated laminations to cut down on eddy currents induced in the core, which is an unwanted power-loss.
What are circular currents called?
If you are referring to currents in iron cores, circular currents are called eddy currents.
Can eddy current only exist in conductive or nonconductive materials?
'Eddy currents' are a circulating currents set up as a result of voltages induced into a metal component which not intended to carry current. For example, eddy currents are induced into the silicon-steel core of a transformer due to voltages induced into the core by the changing currents in the transformer's windings. Eddy currents are unavoidable, although steps can be taken to minimise them -in the case of a transformer's core, by manufacturing the core from laminations. Eddy currents generally have no useful function, but represent energy losses. To answer your question directly, eddy currents can only exist in conducting materials.
What has the author J A Tegopoulos written?
J. A. Tegopoulos has written: 'Eddy currents in linear conducting media' -- subject(s): Eddy currents (Electric)
Why the name eddy for eddy current?
That's from an analogy from eddy currents in water. Quoting from the Wikipedia, article "Eddy (fluid dynamics": "In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle."
What are the swirling currents called that are induced in transformers and produce heat losses?
Eddy currents
What is the need of lamination in transformer?
The laminated plates prevent eddy currents from forming and thus creating unwanted magnetic flux which would counter the flux needed to induce the electric current in the secondary coil
How do eddy currents affect falling objects?
Assuming the eddy currents are caused by the object falling through a magnetic field, the energy for the eddy currents come from the movement through the magnetic field. Therefore, simply due to energy conservation, the object should be slowed down.
What is eddi current?
An 'eddy' (not 'eddi'!) current is a current that flows in the magnetic circuit (core) of an electrical machine, due to a voltage induced into that core by a changing magnetic field. Eddy currents cause energy losses in electrical machines. To minimise eddy currents and, therefore, their losses, machines use laminated cores which restrict the paths through which eddy currents can flow.
How do you produce eddy current in magnetic drum?
Eddy currents in a magnetic drum can be produced by rotating the drum in close proximity to a magnetic field. The changing magnetic field induces currents in the metal drum, which in turn creates its own magnetic field that interacts with the original field, causing eddy currents to flow within the drum.
