Physics · IGCSE · Cambridge · Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) · Specification point · 4.2.4 · Electricity and magnetism · Electrical quantities
4.2.4 Resistance
| Core | Supplement |
|---|---|
1 Recall and use the equation for resistance 2 Describe an experiment to determine resistance using a voltmeter and an ammeter and do the appropriate calculations 3 State, qualitatively, the relationship of the resistance of a metallic wire to its length and to its cross-sectional area |
Flashcards
Flip through flashcards to lock it in.
Lesson
Coming soon
4 Sketch and explain the current–voltage graphs for a resistor of constant resistance, a filament lamp and a diode 5 Recall and use the following relationship for a metallic electrical conductor: (a) resistance is directly proportional to length (b) resistance is inversely proportional to cross-sectional area |