The simplest complete circuit is a piece of wire from one end of a battery to the other. An electric current can flow in the wire from one end of the battery to the other, but nothing useful happens.
Ellie Hurer and James Stewart explore current, resistance and potential difference. They also discuss the relationship between current and resistance in different components. Suitable for: AQA, ...
The electric potential difference is the difference in electric potential represented by V which shortens the word volt, the unit of measurement of the difference in electromotive force (EMF) or ...
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