Which circuit shows the correct and safe positions for the fuse and the switch?
The switch and the fuse both are always placed on the live wire .
- This is because, when the switch is off , the appliance should not still be connected to the high voltage from the live wire.
- Similarly, when the fuse blows , even though current would stop flowing, the appliance would still remain connected to the high voltage live if the fuse were on the neutral wire. This should not happen as it is very dangerous .
- If the live wire remains connected despite the circuit being incomplete, it would deliver a shock to anyone who comes in contact with the appliance.
Therefore, the correct answer is A .