In circuits connected in parallel, the components are connected on different branches. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

Ever need to invert your digital signal? Lucky for us there are fully integrated circuits, that with a few passives can be turned into a quick afternoon project. Come follow along and build this ...

Learn about simple electric circuits and the symbols used to show their different components.

The system of formulæ determines the simple equivalent of the two wires, copper or iron, when their capacity is sufficiently small to be left out of account.