How do u make a anti magnet
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Magnet A has twice the magnetic field strength of magnet B and at a certain distance pulls on magnet B with a force of 50 N. Wit how much force does magnet B pull on magnet A?
One pole of a magnet attracts a nail. Will the other pole of the magnet attract the nail? Explain. Also, explain how a magnet sticks to a refrigerator door.
Assume you charge a comb by running it through your hair and then hold the comb next to a bar magnet. Do the electric and magnetic fields produced constitute an electromagnetic wave? (a) Yes, they do, necessarily. (b) Yes, they do because charged particles are moving inside the bar magnet. (c) They can, but only if the electric field of the comb and the magnetic field of the magnet are perpendicular. (d) They can, but only if both the comb and the magnet are moving. (e) They can if either the comb or the magnet or both are accelerating.