Q3. MCQs:
1. A freely suspended magnet rests in
a) East-west direction
b) North-south direction
c) North-east direction
d) North-west direction
2. Electromagnets are made up of:
a) Steel
b) Copper
c) Brass
d) Soft iron
3. An electromagnet is used in
a) Electric oven
b) Ammeter
c) Electric bell
d) Radio set
4. The purpose of armature in an electric bell is:
a) To make and break the circuit
b) To produce sound
c) To produce magnetic field
d) To provide spring action
5. in a torch, the source of electricity is
a) the bulb
b) the switch
c) the cell
d) the mains​