Electricity moves from the power source (the battery or the mains electricity), around the circuit and back to the power source in a loop. This is called a series circuit.

Make sure the flap is open, then snap the 9V battery into the cap. Check your circuit: You should now be able to trace with your finger the path that electricity will take from one end of the battery, ...

This application note discusses how to create a circuit with a battery backup and battery charge feature. To view the application note, click on the URL below.

The simplest model of a battery comprises an ideal voltage source that connects in series with a resistance whose value—often a few milliohms—depends on the battery’s electrochemical condition and ...

  What you need: 3 crocodile-clip wires 9V battery LEDs Assorted resistors Asparagus   THE candle. It is a simple technology, and a good one. The electronic version is also simple to ...

Learn to recognise different circuit symbols with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.