| − | '''Magnetic Fields''', resulting from the flow of electrons in metal, impose an action-at-a-distance force on other charged particles nearby. This means that charged metals respond to magnetic fields by changing direction, or becoming attracted to or repelled from the field. | + | '''Magnetic fields''', resulting from the flow of electrons in metal, impose an action-at-a-distance force on other charged particles nearby. This means that charged metals respond to magnetic fields by changing direction, or becoming attracted to or repelled from the field. |