Assemble the circuit shown in the diagram. Match the leads on the transistor ... Discuss with your group the advantages you think transistor switches might have over mechanical switches.

Experimenting with batteries, bulbs, buzzers, switches and other electrical components is a great way to learn about circuits and start to think about how to incorporate sounds into your Build a ...

This circuits Year 4 worksheet looks at simple circuits, and introduces a switch. There are nine diagrams for children to predict if the bulb will light up or not, and for them to test out to see if ...

This circuit diagram joins a cell, a switch and two bulbs. Click on the next slide to see what the circuit might look like if you built it. Image caption, This shows what the previous circuit ...

Abstract: IN THE CONTROL and protective circuits of complex electrical systems it is frequently necessary to make intricate interconnections of relay contacts and switches. Examples of these circuits ...