labview1958 Posted July 21, 2007 Report Posted July 21, 2007 What will happen to the magnetic field if tiny holes are made in the poles of a magnet? Quote
eric l Posted July 22, 2007 Report Posted July 22, 2007 Is there any danger that the temperature rise due to the drilling will influence the strength of the magnetic field ? I remember magnets stuck on the wall of an oven getting weaker. Quote
sanctus Posted July 22, 2007 Report Posted July 22, 2007 theoretically yes, as you put more disorder in the system and hence the magnetics moments are less correlated with the consequence of diminishing the field strength...now if this is detectable I don't know. Quote
Jay-qu Posted July 23, 2007 Report Posted July 23, 2007 Weaken and change shape slightly, I would say. Quote
Qfwfq Posted July 23, 2007 Report Posted July 23, 2007 What will happen to the magnetic field if tiny holes are made in the poles of a magnet?The field gets a bit weaker and won't be uniform in the vicinity of the hole. At other points of the surface the field will be the same, but the total flux will be decreased and therefore also the average flux density. Is there any danger that the temperature rise due to the drilling will influence the strength of the magnetic field ? I remember magnets stuck on the wall of an oven getting weaker.Certainly, and according to the magnetic material it can even be weaker after cooling down. If it reaches the material's Curie temperature, it loses magnetization completely. Quote
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