Spec 0625
Revise CIE IGCSE Physics 4.2.4b Resistance of a metallic wire with the question bank and revision guides.
State, qualitatively, the relationship of the resistance of a metallic wire to its length and to its cross-sectional area • Supplement: 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
