Induced Current and Eddy Current

In summary, the conversation discusses the similarities between induced current and eddy current. Both are a result of a changing flux linked with a circuit and follow Lenz's law. Eddy currents are a specific type of induced current, typically produced in metal plates oscillating between magnetic fields, while induced currents can also be produced in conducting wires.
  • #1
logearav
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Homework Statement



I want to know whether Eddy current and Induced Current are same?

Homework Equations





The Attempt at a Solution


1)When flux linked with a circuit changes, an emf is induced in the circuit and this emf is called induced emf and the current is called induced current. The direction of current is given by Lenz law.
2)Now, let me come to Eddy current. When we consider a metal plate oscillating between the poles of a magnetic field, an induced current is set up in the metal in the form of whirlpool and hence called Eddy current and this Eddy current sets up its own magnetic field opposite to the magnetic field of poles.
The direction of induced current is given by Lenz law.
So it makes me to think the induced current formulated by Faraday in Electromagnetic induction(1) and Eddy current(2) are same. Am i right , revered members?
 
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  • #2
Yes, they are the same in the sense that eddy currents are specific examples of induced currents.

In many cases, induced currents are produced in conducting wires that are part of a circuit. In such cases the induced currents are not called eddy currents.

However, induced currents can also be easily produced in conductors of any shape. When the conducting material is spread out over an extended area or volume, the induced currents are called eddy currents.
 
  • #3
Thanks TSnY.
 

What is induced current?

Induced current is the flow of electric charge in a conductor that is caused by a changing magnetic field. This change in magnetic field can be achieved by moving a magnet near a conductor, changing the orientation of a magnet, or varying the current in a nearby conductor.

How is induced current different from regular current?

Induced current is different from regular current in that it is not produced by a direct electrical connection, but rather by a changing magnetic field. Regular current is produced by a flow of electrons through a conductor due to an applied voltage.

What is the relationship between induced current and eddy current?

Eddy current is a type of induced current that occurs in a conducting material when it is exposed to a changing magnetic field. Eddy currents circulate within the material, resulting in a dissipation of energy and a generation of heat.

How are eddy currents useful?

Eddy currents can be beneficial in certain applications, such as in induction heating and braking systems. In induction heating, eddy currents are used to generate heat in a conductor, making it useful in cooking appliances and industrial processes. In braking systems, eddy currents are used to slow down moving objects, such as in the brakes of trains and roller coasters.

How can eddy currents be reduced or controlled?

Eddy currents can be reduced or controlled by using materials with low electrical conductivity, by using laminated structures to minimize the flow of eddy currents, or by placing magnetic shields around the conductor to redirect the magnetic field. Another method is to use a technique called magnetic braking, where a magnetic field is applied to counteract the eddy currents and reduce their effect.

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