The advantages of electromagnetism are given below.
a. Electro magnets can be magnetised very easily by sending DC through it.
b. Changing the direction of the current through the coil can change the polarity of the poles.
c. The strength of the magnet can be controlled by the electric current.
d. Electro magnets can be made in any shape depending upon the need.
e. The magnetic strength remains constant as long as the current is constant.
