A freely suspended magnet rests in:

1. east-west direction
2. north-south direction
3. north-east direction
4. north-west direction

Electromagnets are made up of:

1. steel
2. copper
3. brass
4. soft iron

The purpose of armature in an electric bell is:

1. to make and break the circuit
2. to produce sound
3. to produce magnetic field
4. to provide spring action

In a torch, the source of electricity is:

1. the bulb
2. the switch
3. the cell
4. the mains