CAIE IGCSE Physics Potential Difference and Resistance
Practise using a constant-current potential divider to relate a conductor's resistance to its share of the supply voltage, especially for LDR changes.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- state that at constant current the potential difference across a conductor increases with resistance
- track an LDR resistance change to the voltage across it or another resistor in a potential divider
