Thu September 24, 2009 By:

pls answer

Expert Reply
Wed September 30, 2009

Reason is as follows,

If the magnetic field associated with the current in a conductor were in the same direction as the change in magnetic field that created it, these two magnetic fields would combine to give a net magnetic field which would in turn induce a current with twice the magnitude. This process would continue creating infinite current from just moving a magnet: this would be a violation of the law of conservation of energy.




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