Physics A-Level
The equation R = ρL/A
What The equation R = ρL/A means in Physics A-Level, as defined for OCR.
Definition of The equation R = ρL/A
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Reference: OCR
Relates resistance in ohms to length in metres and cross-sectional area in square metres, and rearranges to ρ = RA/L.
Topics that use The equation R = ρL/A
- Resistivity (OCR A-Level)
Related terms
- Charge-carrier release in semiconductors
- Choice of measuring instruments
- Experimental determination of resistivity
- Graphical interpretation of ρ against T
- Microscopic model of conduction in metals
- ntc thermistor
- Resistivity
- Semiconductor charge-carrier model
Using The equation R = ρL/A in the exam
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