Two like pole bar magnets.
The magnets are placed end to end.
Note the neutral point between the magnets.
Two unlike pole bar magnets.
The magnets are placed end to end.
Note the field line loops.
Two bar magnets placed side by side.
The magnets are opposite poles.
Note the neutral point between the magnets.
Two bar magnets placed side by side.
The magnets are opposite poles.
Note the two neutral points at each end of the magnets.
The circular magnetic field around a current carrying wire.
The large current needed was obtained by momentarily
connecting a 12V Jump Start battery across the wire.
The magnetic field through a loop of wire.
Note how the field sum in the middle of the loop.
The large current needed was obtained by momentarily
connecting a 12V Jump Start battery across the wire.
Note how the field through each coil sum together
producing a field like a bar magnet.
The large current needed was obtained by momentarily
connecting a 12V Jump Start battery across the wire.