It's wires that connect to different electrical components, like a light bulb, a switch, and a battery. JAMES: Yeah, there are actually two types of circuits. We have series circuits and parallel ...

Like a motor. Or you can even put in a switch that can temporarily break ... So it helps to think of an electrical circuit a bit like the central heating system in a house. We call this comparison ...

In a telegraph a switch opens and closes an electric circuit. In Morse's original design ... Here are a few more examples: Inside an electric motor, current flows into a coil of wire, and a ...