4.2.4 — Resistance

Core

• 4.2.4.1 — Recall and use R = V/I
• 4.2.4.2 — Describe experiment to determine resistance using ammeter and voltmeter
• 4.2.4.3 — State qualitatively how resistance depends on length and cross-sectional area of a wire

Supplement

• 4.2.4.4 — Sketch and explain I–V graphs for resistor, filament lamp and diode
• 4.2.4.5 — State resistance ∝ length and 1/area for metallic conductors