AQA GCSE Combined Science Trilogy · 8464
Specification 6.2.1.1 · Paper 5, Paper 6
Revise: Circuit Diagram SymbolsA voltmeter is a circle containing V and measures potential difference.
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GCSE Combined Science · key term
A meter that measures potential difference between two points and is connected in parallel across the component being tested.
Used by AQA and Edexcel
Specification 6.2.1.1 · Paper 5, Paper 6
Revise: Circuit Diagram SymbolsA voltmeter is a circle containing V and measures potential difference.
Paper 5, Paper 6
An instrument that measures potential difference between two points, connected in parallel across the component being measured.
Put an ammeter in series and a voltmeter in parallel across the component being measured.
Draw a voltmeter in parallel across the component being measured, not in series.
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A voltmeter measures potential difference between two points. To measure the potential difference across a resistor, connect one voltmeter lead to each side of the resistor. The voltmeter is then in parallel with it: both are connected between the same two circuit points.