Why is pure iron not used for making permanent magnets? Name one material used for making permanent magnets. Describe how permanent magnets are made electrically. State two examples of electrical instruments made by using permanent magnets.

(N/A) Pure iron is not used for making permanent magnets because it gets easily demagnetized.
$Alnico$,an alloy of iron,nickel,cobalt,and aluminum,is used for making permanent magnets.
Permanent magnets are made electrically by placing a ferromagnetic material (like $Alnico$) inside a solenoid and passing a strong direct current through the coil for a sufficient duration. The magnetic field produced by the solenoid aligns the magnetic domains within the material,resulting in a permanent magnet.
Two examples of electrical instruments that use permanent magnets are $electric$ $motors$ and $electric$ $bells$.