Physics A-Level
Ohmic and non-ohmic conductors
What Ohmic and non-ohmic conductors means in Physics A-Level, as defined for AQA.
Definition of Ohmic and non-ohmic conductors
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Reference: AQA
An ohmic conductor at constant temperature gives a straight-line I–V graph through the origin, while a filament lamp is non-ohmic because heating raises its resistance.
Topics that use Ohmic and non-ohmic conductors
- Current–voltage characteristics (AQA A-Level)
Related terms
- Direct proportionality
- Filament lamp
- Graph interpretation
- Ideal ammeter
- Ideal assumption
- Ideal voltmeter
- Non-ohmic behaviour
- Ohmic and non-ohmic behaviour
Using Ohmic and non-ohmic conductors in the exam
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