Two lamps connected in series with ... same throughout a circuit and voltages add up to the supply voltage. Components that are connected on separate loops are connected in parallel.

JAMES: And if you want to know exactly what that looks like, be sure to check out the BBC Bitesize website if you are someone that prefers to see rather than hear. Series circuits and parallel ...

However, this is a great time to look at the difference between series and parallel circuits. A Simple Circuit Just about the simplest circuit you can create uses just one battery and one light bulb.