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The dimensions of a rectangular block of carbon are 2 cm × 2 cm × 10 cm cm. If the resistivity of the carbon is 2 × 10–5 W m, what is the resistance measured between the two square surfaces?

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The dimensions of a rectangular block of carbon are 2 cm × 2 cm × 10 cm cm. If the resistivity of the carbon is 2 × 10<sup>–5 </sup>W m, what is the resistance measured between the two square surfaces?






 
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