Question

how does resistance of a wire is influenced by its length and area of cross section​

Answer 1

Answer:

The resistance of a conductor is directly proportional to its length (L) as R ∝ L. Thus doubling its length will double its resistance, while halving its length would halve its resistance. Also the resistance of a conductor is inversely proportional to its cross-sectional area (A) as R ∝ 1/A

Explanation:

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Answer 2

Answer:

Rs= 1/R1+1/R2+1/R3 {Resistance in series}