Ans.
1.
A magnetic separator
consists of a leather belt that moves over two rollers.
2.
Out of two rollers, one
roller is an electromagnet.
3.
The crushed ore is allowed
to fall on the moving belt of a magnetic separator, the magnetic portion in the
ore is attracted by the magnet and forms a heap neat the roller.
4.
The nonmagnetic impurities
(gangue) fall away and form a separate heap.
5.
Thus, magnetic ores are
separated from nonmagnetic gangue and become concentrated.
