4.2.1-4.2.4 · Electrical quantitiesLesson 12 of 15
Resistance of a wire: length and cross-sectional area
Double the length and the resistance doubles. Double the cross-sectional area and it halves.
Locked
Unlock the rest of O Level Physics: Electricity and Magnetism (5054).
- Every lesson, every resource, unlocked instantly.
- Track progress and pick up where you left off.
- Free preview lessons stay readable from the outline.