Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

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Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor) Answer: both 'a' & 'b'

Question context

This question is part of ⚗️ Chemical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.