BRAINCAKEFilament Lamp
The I-V graph for a filament lamp is a non-linear, s-shaped curve passing through the origin, because the current is not directly proportional to potential difference.
At low potential differences, the graph is a straight line through the origin.
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Key terms in this lesson
- Potential difference
- The energy transferred per unit charge as charge moves between two points in a circuit.
- Resistance
- The ratio of the potential difference across a component to the current flowing through it, measured in ohms.
More in Electric Current
- Superconductivity
- Electronic Components
- Investigating the Characteristics of Components
- IV Graphs
- Fixed Resistors
- Thermistors and Light Dependent Resistors
- Diodes
- Resistance and Temperature
All 20 lessons in Electric Current · All AQA AS-level Physics topics