Question

What is an electromagnet ? Ilow can we determine north and south pole of an electromagnet with the help of magnetised iron bar.CBSE Class X Science SA 2 (3 Marks)

Answer 1

An electro magnet is a temporary magnet made from a soft piece of iron when current flows in the coil wound around it.It is an artificial magnet

Answer 2

An electromagnet is a temporary magnet made by passing current in a coil wound around a piece of soft iron.
if we bring the north pole of the magnet towards the pole of the electromagnet and there is a repulsion then it is a north pole and if we take the north pole of the iron bar towards the other end of electromagnet and it attracts it then it is a south pole of electromagnet. Then taking the south pole of magnetised iron bar follow the above steps