Leontarion Posted June 21, 2017 Report Posted June 21, 2017 Can somebody explain me the physics with formulas to this image? Is from a youtube video. The guy uses magnets, battery and after put over an aluminium "paper" where starts to spin . One question. Can i add the videos' url or is considered spam? Quote
exchemist Posted June 21, 2017 Report Posted June 21, 2017 (edited) Can somebody explain me the physics with formulas to this image? Is from a youtube video. The guy uses magnets, battery and after put over an aluminium "paper" where starts to spin . One question. Can i add the videos' url or is considered spam?I think I dimly recall this from school. If you pass a current radially across a portion of a conducting disk that is between two magnetic poles, you will induce motion in the disk by Fleming's left hand rule: https://en.wikipedia.org/wiki/Fleming%27s_left-hand_rule_for_motors I think it may be called a Faraday disc: https://en.wikipedia.org/wiki/Homopolar_generator Does he have one wire attached to the centre and the other one brushing gently against the rim, by any chance? Edited June 21, 2017 by exchemist Quote
Leontarion Posted June 21, 2017 Author Report Posted June 21, 2017 I remember few things about magnetism but even easy looking problems , sometimes have difficult calculated solutions. I will have a look after to your links. Thank you. Quote
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