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Forums
Physics
Classical Physics
Electromagnetism
Do magnets lose strength by pulling them apart?
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[QUOTE="jbriggs444, post: 6045661, member: 422467"] Changing the angle at which something travels does not necessarily use energy. A force applied at right angles to the direction of motion does no work because there is no motion in the direction of the applied force. However, it is true that a bit of energy is lost when conductive magnets pass by one another. The changing magnetic fields induce eddy currents in each other. The energy for this comes from the person that tossed the magnets past one another. [It is, more or less, the same effect that is used in electric generators]. [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Do magnets lose strength by pulling them apart?
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