alleryFor a given material, resistance of a wire is proportional to which property?
AIts colour
BIts length
CIts price
DIts age
Answer & Solution
Correct answer: B. Its length
1. For a given material, resistance is proportional to the length.
2. Colour, price and age do not set the resistance.
3. So length is correct.
_Source: Wikipedia, Electrical conductor, Resistance and conductance_
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