Last month's column covered the behavior of electrical components connected in series and demonstrated that when a voltage is applied across a series circuit, the current through each component is the ...

Learn how engineers design electrical circuits by calculating the voltage, current and resistance of electrical components.

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.

Description of a circuit to tell if the high-voltage supply in an industrial smokestack precipitator is functioning properly.

Voltage is a lot like water pressure, and a vehicle’s bulbs, motors, pumps, injectors and other devices that perform work need a proper supply delivered to them.