Switch is used to open or close the electrical circuit.

Open the switch = NO current is flowing through the circuit.

Close the switch = Current can flow through the circuit.

The switch should be connected to the LIVE wire and not the neutral or earthing wire. If you connect the switch to the neutral wire, even if the switch is opened, the appliance will still be connected to the live wire. This increases the possibility of an electric shock.

The switch should be connected BEFORE the appliance. (There’s no way for you to connect after the appliance.)

Back To Practical Electric Circuitry (O Level Physics)

Back To O Level Physics Topic List

Mini Physics

As the Administrator of Mini Physics, I possess a BSc. (Hons) in Physics. I am committed to ensuring the accuracy and quality of the content on this site. If you encounter any inaccuracies or have suggestions for enhancements, I encourage you to contact us. Your support and feedback are invaluable to us. If you appreciate the resources available on this site, kindly consider recommending Mini Physics to your friends. Together, we can foster a community passionate about Physics and continuous learning.

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.