Ohmic conductor
What Ohmic conductor means in Physics A-Level, as defined for AQA, OCR.
Definitions of Ohmic conductor
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Reference: AQA
At constant temperature, current is directly proportional to potential difference, so the I–V graph is a straight line through the origin and resistance is constant.
A resistor that obeys Ohm’s law, so its current–voltage graph is a straight line through the origin.
Topics that use Ohmic conductor
- Current–voltage characteristics (AQA A-Level)
- Resistance (OCR A-Level)
Related terms
- Graph interpretation
- Non-ohmic behaviour
- Ohmic and non-ohmic behaviour
- Temperature dependence of resistance
- Circuit design for measurement
- Component protection
- Current–voltage characteristics
- Data logging and graphing
Using Ohmic conductor in the exam
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