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

Electricity does not flow through:

1. human body
2. animal's body
3. rubber
4. silver

We should not touch the switch with wet hands, otherwise:

1. electricity may pass through our body
2. electricity may not pass through the appliance
3. circuit may break
4. the switch may get off