how to know the south pole and the north pole of a magnet?
441354
hang the magnet in the air freely with the help of thread and observe the south pole in geographically north directions.
674108
The poles of any magnetized item will be at the extreme opposite points...in other words the positive will be as far as it can get from the negative.  In the case of a sphere this would be "top" and "bottom" not core and perimeter.  (Think of the Earth's magnetic poles!).
1045884
http://en.wikipedia.org/wiki/Magnets\n\ngo there if u wanna find out, i only know simple version...
359816
http://www.vrml.k12.la.us/mike/Intech2/learning_about_magnets.htm\n\nCHECK IT OUT
1146296
The magnetic flux:\nit is the product of area & magneric flux component \nThe magnetic flux density:\nit is numerically measured by the number of magnetic flux lines passing perpendicular to a unit area surrounding that point & it is measured in Tesla
89051
On average, about once every 250,000 years or so Earth's two magnetic poles switch---the north magnetic pole becomes the south magnetic pole, and the south magnetic pole becomes the north magnetic pole. This means, among many other things, that compasses would all point south instead of north.\n\nScience knows that these pole reversals do happen. Some ancient rocks tell the story. In the far distant past these rocks were molten. At those times their interior materials would align themselves to Earth's magnetic field, much the way an electromagnet will. Careful analysis shows that the magnetic lines of force imbedded in these rocks often were directly opposite to Earth's present magnetic field.\n\nThe last pole reversal happened some 700,000 years ago, so we're sort of overdue for another one.
101591
See if it is attracted to a magnet?
1090863
a compass tells you which way is north. once you know where north is you can tell in which directions south, east, and west is.
699104
Compass needles align themselves with the magnetic field directions. On earth, the magnetic field direction is always from the north pole to the south pole (approximately), hence the compass shows north and south directions.\n\nThus, if in a particular location in space there is a magnetic field, the compass will align itself with it, otherwise, if there is no magnetic field around (most likely in your assumption of space) the needle will not try to show any direction, as you turn the compass, the neddle will freely turn with it.
569770
When you are exactly at  the north or south pole, the compass needle just dangles. It experiences equal force to point in any direction.
574455
South Magnetic Pole\nIs the point on the Earth's surface where the direction of the Earth's magnetic field is vertically upwards. The magnetic dip, the angle between the horizontal plane and the Earth's magnetic field lines, is 90° at the magnetic poles. The south magnetic pole is not fixed and its position moves about 5 kilometres a year presently in a north to northwesterly direction. The location of the south magnetic pole as at February 1998 was 64.59° S and 138.53° E.\n\nGeomagnetic Pole\nEither of two points of intersection of the surface of the Earth with the extended axis of a magnetic dipole which is assumed to be located at the centre of the Earth and approximates the source of the Earth's magnetic field. It should not be confused with the magnetic pole which relates to the actual magnetic field of the Earth. The south geomagnetic pole is at 78° 30' S and 111° E which is near Russia’s Vostok Station.
152782
If a bar magnet breaks into two, then there will be two magnets, each with a N and a S pole.
474837
The direction of the north magnetic pole on the earth changes slowly over time. In addition, occasionally, the north and south poles reverse with the pole in the northern hemisphere becoming a south magnetic pole and vice versa. This can be recorded in magnetic rocks and even has utility as a dating method. According to our understanding right now, we are in the middle of such a switch. This is why the strength of the magnetic filed is decreasing. Anyway, a shift is when one of these switches happens.
485205
a magnet by definition is a LINEAR entity consisting of 2 opposite ends ( north and south ).\n\nif you cut a rectangular magnet into a smaller sphere, that linear axis in the original magnet will still stay the same in the sphere !\n\nmagnets ALWAYS have a linear alignment no matter there exterior shape !
1112646
The pole in the north direction of earth is the south magnetic pole of earth's magnet.\n\nThe position of magnetic pole is changing but not the pole itself. If the pole cahnges then the magnetic needle in the compass will deflect in the opposite direction.
1097908
Iron, cobalt and nickel can be magnetic. They can be made to have polarity. Poles that are alike repel and poles which are not alike attract. A magnet will attract all of them if they are not polarized. If they are polarized, a magnet will attract or repel according to the polarity.\n;-D
484193
You mean 2 P of a M which is 2 poles of a magnet.