If 2 magnets are kept close to each other they attract then shouldn't it be considered as work done by magnetic field?
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2Possible duplicate of How can Magnets be used to pick up pieces of metal when the force from a magnetic field does no work? – BowlOfRed Jan 15 '19 at 04:22
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A magnet attracts or repels another magnet, doing work. A magnet deflects a moving charged particle sideways, changing its direction but not its speed, and so doing no work. – mmesser314 Jan 15 '19 at 05:57