Question

Mention any two ways by which the strength ​of an electromagnet can be increased.​ [2 marks]

Answer 1

An electromagnet is a type of magnet in which the magnetic effect is produced by an electric current.
Two methods by which we can increase the strength of the magnetic field are:

• The magnetic strength of an electromagnet is increased by increasing the current in the coil. [1 mark]
• The strength of an electromagnet increases also when more turns are introduced into the coil. [1 mark]