How is an electromagnet made ? Write any two ways by which the strength of electromagnet can be increased.

• An electromagnet is formed by wrapping a current carrying insulated copper wire in the form of coil around a magnetic material like soft iron core. / By placing a magnetic material like soft iron as a core material inside the current carrying solenoid. (1 Mark)
• Strength of electromagnet can be increased by increasing the
(i) Number of turns of coil (½ Mark)
(ii) Current flowing through the coil. (½ Mark)