Factors that affect the resistance of a conductor

February 20, 2024 by evantoh Leave a comment

In general, assuming temperature of a conductor is constant, the resistance of a conductor is affected by
1) length (L) – [L increases, R increases]
2) cross-sectional area (A) – [A increases, R decreases]
3) resistivity (p) = [p increases, R increases]

As R is directly proportional to L and p, and is inversely proportional to A,
R = pL/A

MCQ questions from Olevel

There are times when using the formula is more appropriate.