Labels:bulletin board | earth | field | monitor | plant | reckoner | sky | traffic light | windowpane OCR: Magnetic fields produced electric cuirren An electric current flowing through Wire produces magnetic field around the wire This effect called electromagnetism Itis used in very powerful magnets, such as the ones that move the flippers on the moon and to operate electric motors DIRECTION MAGNETIC OF CURREN FIELD LINES Magnetic fiela minair single The magnetic field lines run 11 circles around the single wire above This is different from bar magnet in which the lines of the field follow paths from the magnet's north pole around its south pole For normal currents the field that single wire produces is not very large TIREGTION MAGNETC FIELDIINES Magneti