Faraday's law and perpetual motion

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    Faraday's law Law
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A positive sign in Faraday's law would imply that the induced electromotive force (emf) reinforces the change in magnetic flux, potentially leading to perpetual motion. This scenario contradicts the law of conservation of energy, as it suggests a system that continuously accelerates without energy loss. Participants in the discussion agree that while it may not be technically classified as perpetual motion, the concept aligns with the idea of continuous movement. The consensus leans towards the answer being "true" in the context of the question posed. Overall, the discussion highlights the implications of altering Faraday's law and its effects on energy conservation.
Princess19
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If a positive sign were present in Faraday's law instead of a negative sign, this would lead to perpetual motion..

True or false?
 
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Is this a homework question?
 
no, its a test question and i want to see if i got it right :)
 
perpetual motion of?
 
I think the answer is true, since the sign is positive, it doesn't oppose the change in magnetic flux, therefore violating the law of conservation of energy, and itll never stop moving as it increases in velocity.
 
Agreed. Consider a wire ring in a changing magnetic field. The induced emf would generate a current whose magnetic field reinforced (instead of opposed) the external field, creating positive feedback. I wouldn't call that perpetual motion exactly, but in spirit "True" is the right answer.
 
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