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Memories of those Phyics Lessons
   at 20:59 on Wed 8th February 2006


Two comments
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by Gordon at 09:47 on 09th Feb 2006
Its not like me to say anything intelligent, but I think the wire would get hot even if it weren't in a coil. Its just that having it all rolled up in a sealed(ish) container lets the heat build up. Straight wires have an electromagnetic field as well - google for 'faraday motor'. And now I'll go back to being stupid for the rest of the day...

by Matt at 15:27 on 13th Feb 2006
That makes sense. Especially considering it was powering one of those expensive (to run) electric heaters which presumably draw a lot of current. It was toasty warm in my bedroom that night, though. :-)