Learn about and revise how series and parallel circuits work and resistance in series and parallel circuits with GCSE Bitesize Combined Science. BBC Homepage. Skip to content; ...

Engineers connect components in electrical circuits in series or parallel to make a range of useful circuits. We can calculate the voltage, current and resistance in these circuits.

However, this is a great time to look at the difference between series and parallel circuits. ... Suppose each lightbulb has a resistance R (it doesn't matter than lightbulbs are non-ohmic).