A simple standard electrical circuit usually has a black or red "hot" wire that carries power from the power source to the ...

We can see how circuits work, and represent them with some simple diagrams, using basic electrical components ... can provide power to our circuit. A wire from the cell can then be connected ...

To draw circuit diagrams, we use simple symbols to represent ... switch or lamp. Electric current The flow of electricity through a wire or circuit. Voltage (V) A measurement of the strength ...