Shini explores electric current, voltaic cells, and how we get electric charge.

Many introductory books on electricity try to relate voltage to water pressure, electric current to water flow, and resistance to changes in pipe volume.

An electron will not pass through every component on its way round the circuit. If one of the bulbs is broken then current will still be able to flow round the circuit through the other loop.

How to affect electric current - OCR 21st Century Electric current Electrical current depends on resistance and potential difference. Different electrical components have different characteristics.

Ulfbastel/Wikimedia Commons, CC BY-SA A resistance-free material A superconductor is any material that conducts electricity without offering any resistance to the flow of the electric current.