Two wires of equal length one of copper and other of manganin have the same resistance. Which wire is thicker?

Two wires of equal length one of copper and other of manganin have the

1.	Two wires of equal length one of copper and other of manganin have the same resistance. Which wire is thicker?
Answer» `R=rho l//A` or `A prop rho` if l and R are constant. Since `rho` is grater for manganin than for copper, hence manganin wire is thicker than copper wire.

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Two wires of equal length one of copper and other of manganin have the same resistance. Which wire is thicker?

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