The resistivity of Cu at 0C is 1.30 x 10-8 2.m. The change in resistivity per...
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The resistivity of Cu at 0°C is 1.30 x 10-8 2.m. The change in resistivity per degree Celsius is 0.02 x 10-8 2.m. A Cu wire of length 10 cm is heated from 0°C to a new temperature T. The resistivity at this temperature is 15.3 x 10-8 2.m and the length of the wire is 10.4 cm. Calculate the thermal expansion coefficient of Cu. O 5.7 x 10-5/K O 1.7 x 10-5/K O 2.8 x 10-4/K O 1.3 x 10-3/K. The resistivity of Cu at 0°C is 1.30 x 10-8 2.m. The change in resistivity per degree Celsius is 0.02 x 10-8 2.m. A Cu wire of length 10 cm is heated from 0°C to a new temperature T. The resistivity at this temperature is 15.3 x 10-8 2.m and the length of the wire is 10.4 cm. Calculate the thermal expansion coefficient of Cu. O 5.7 x 10-5/K O 1.7 x 10-5/K O 2.8 x 10-4/K O 1.3 x 10-3/K.
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