Physics A-Level
Filament lamp
What Filament lamp means in Physics A-Level, as defined for AQA.
Definition of Filament lamp
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Reference: AQA
Its resistance increases as current increases because the filament temperature rises, so the I–V graph curves and flattens.
Topics that use Filament lamp
- Current–voltage characteristics (AQA A-Level)
Related terms
- Direct proportionality
- Graph interpretation
- Ideal ammeter
- Ideal assumption
- Ideal voltmeter
- Non-ohmic behaviour
- Ohmic and non-ohmic behaviour
- Ohmic and non-ohmic conductors
Using Filament lamp in the exam
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