Why uniform constant magnetic fields can not exert net force on a piece of iron whatever strong it might get?
I have two identical bar magnets... Each bar magnet can lift an object with 10lb of force. When they attract each other, I believe that each magnet applies a force of 10lb to attract the other. That ...
When magnets attract to each other or repel. Should I use Coulombs law? If not, why not? Some would say that I shouldn't because: "Coulomb's law deals with static charges and force due to them. ...