Question

Describe the construction and working of electro magnetic?????

Answer 1

Normally, the atoms in the nail are oriented in random directions and individual magnetic fields cancel each other out. Under the influence of electric current, these atoms are reoriented to start pointing in the same direction. All these individual magnetic fields together create a strong magnetic field. As the current flow increases, this degree of reorientation also increases, resulting in a stronger magnetic field. Once all the particles are reoriented perfectly in the same direction, increasing current flow will not affect the magnetic field produced. At this point, the magnet is said to be saturated.

Answer 2

electromagnet usually consists of wire wound into a coil current through the wire create a magnetic field which is concentrated... in the hole the centre of the coil. however unlike a permanent magnet its need no power electromagnet needs a continuous supply of power and that is how its work