Would running an electrical current through a magnet destroy the magnet?

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Discussion Overview

The discussion centers around the effects of running an electrical current through an iron magnet, specifically regarding whether it would retain its magnetic properties and the potential for demagnetization.

Discussion Character

  • Exploratory, Technical explanation

Main Points Raised

  • One participant inquires about the effects of electrical current on an iron magnet and its ability to retain magnetic properties.
  • Another participant suggests that heat generated by electrical resistance could lead to demagnetization and notes that the current would induce a concentric magnetic field, which could have varying effects on the magnet depending on the orientation of this field relative to the magnet's domains.
  • Several participants express appreciation for the clarity and succinctness of the responses provided.

Areas of Agreement / Disagreement

Participants generally agree on the potential for demagnetization due to heat and the influence of the induced magnetic field, but the discussion does not resolve the specifics of the effects or the conditions under which they occur.

Contextual Notes

The discussion does not address specific thresholds for current or temperature that would lead to demagnetization, nor does it clarify the exact relationship between the induced magnetic field and the magnet's domains.

lets_resonate
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Hello,

Suppose you had an iron magnet. What effect would an electrical current have on this magnet? Would it still retain its magnetic properties?

Thanks in advance for the help.
 
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Any heat generated by the electricity through resistance of the iron would cause demagnetization. The current would also induce a magnetic field concentric to itself. Depending on the orientation of this induced magnetic field to the domains in the magnet (with respective components parallel or antiparallel), the current would conventionally have a slight magnetizing or demagnetizing effect.
 
What a great succint reply Loren...
 
Thanks for the pleasant aire.
 
Thank you, that was a very clear answer indeed.
 

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