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Calculate the resistance of a copper wir...

Calculate the resistance of a copper wire of length 1 m and area of cross section `2 mm^2`. Resistivity of copper is `1.7xx10^(-5) Omega m`.

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`R=p l/A=(1.7xx 10^(-8) Omega m)xx(1m)/(2xx(10^(-3) m)^2)=8.5 xx10^3 Omega`.
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