The resistance of a rectangular block of copper of dimensions \( 2 \mathrm{~mm} \times 2 \mathrm...

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The resistance of a rectangular block of copper of dimensions \( 2 \mathrm{~mm} \times 2 \mathrm{~mm} \times 5 \mathrm{~m} \) between two square faces is \( 0.02 \Omega \). What is the resistivity of copper?
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