Physics A-Level
Ideal voltmeter
What Ideal voltmeter means in Physics A-Level, as defined for AQA.
Definition of Ideal voltmeter
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Reference: AQA
Has infinite resistance and is connected in parallel with the component, so no current flows through it and it does not change the potential difference.
Topics that use Ideal voltmeter
- Current–voltage characteristics (AQA A-Level)
Related terms
- Direct proportionality
- Filament lamp
- Graph interpretation
- Ideal ammeter
- Ideal assumption
- Non-ohmic behaviour
- Ohmic and non-ohmic behaviour
- Ohmic and non-ohmic conductors
Using Ideal voltmeter in the exam
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