What causes eddy currents to form in metals?

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SUMMARY

Eddy currents are induced in metals when they are exposed to a changing magnetic field, leading to internal heating and potential melting of the material. In the case of the galvanometer, there are no eddy currents in its metallic core despite its movement in a magnetic field. This phenomenon occurs because the core does not experience a changing magnetic field sufficient to induce these currents. Understanding the conditions under which eddy currents form is crucial for applications such as induction furnaces.

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  • Understanding of electromagnetic induction principles
  • Familiarity with the concept of magnetic fields
  • Knowledge of thermal effects in metals
  • Basic equations related to eddy currents
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  • Research the principles of electromagnetic induction in detail
  • Study the mathematical equations governing eddy currents
  • Explore applications of eddy currents in induction heating
  • Investigate the design and function of galvanometers in magnetic fields
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Students and professionals in physics, electrical engineering, and materials science who are interested in the behavior of metals in magnetic fields and the practical applications of eddy currents.

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There aren't any eddy currents in the metallic core of the galvanometer , Although it moves in a magnetic field? If it's right , why?
 
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Aya Elsayed said:
There aren't any eddy currents in the metallic core of the galvanometer , Although it moves in a magnetic field? If it's right , why?
Welcome to the PF. :smile:

What reading have you done about eddy currents? What are the Relevant Equations?
 
berkeman said:
Welcome to the PF. :smile:

What reading have you done about eddy currents? What are the Relevant Equations?
Thanks! ... Eddy currents are induced in a metal when it feels a changing magnetic field . Then its internal temperature gets high and startes to melt . we apply that to the induction furnace... That's all what I knew about them .
 

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