How do I work out the area or length of a wire when I only know the resistance/conductance and the length/area?

How do I work out the area or length of a wire when I only know the resistance/conductance and the length/area?
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1 Answer

Answer :

if cunductance = conductivity x area/length then length = conductivity / conductance x Area i think, if the equation is transposed correctly, it’s been a while since school maths. better check that one though.
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