Question

Can we magnitize an iron bar by simple passing current through it only by passing current not by coil a solenoid coil or anything​

Answer 1

Answer:

To become magnetized, another strongly magnetic substance must enter the magnetic field of an existing magnet.

When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field.