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 ...

but it can also contain other electrical components, such as bulbs, buzzers and motors. When drawing circuit diagrams, rather than drawing detailed components, we use simple symbols to represent ...