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Find the Resistivity.If the length of the wire is 50 cm and the radius is 0.5mm, find the resistivity of wire if its resistance is 30 ohms. |
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Answer» RESISTANCE = RESISTIVITY * LENGTH / area 30 = (resistivity * 0.5) / (0.0005 * 0.0005 * 3.14) 30 = resistivity * 636943 resistivity = 4.7 * 10^-5 OHM m. |
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