How many important parallels of latitudes are there apart from the North Pole, South Pole and the Equator?
4
8
2
7
If the above bar magnet is broken along the middle line, then how many north poles and south poles are formed?
The magnetic north and south poles of the earth are different from its geographical north and south poles.
The magnetic field lines produced by a bar magnet :
(a) originate from the south pole and end at its north pole
(b) originate from the north pole and end at its each pole
(c) originate from the north pole and end at its south pole
(d) originate from the south pole and end at its west pole