This simple flashing light circuit is powered with 6 volts/0.5A and has a low current consumption when the light bulb is off. The flashing frequency is set by only one capacitor. Transistor T1 may be ...

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.

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 make, and is a ...