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How resistance and resistivity get effected by temperature. If there is iron wire at room temperature of 20 oC and then you increased its temperature

  1. How resistance and resistivity get effected by temperature. If there is iron wire at room temperature of 20 oC and then you increased its temperature to 50 degrees Celsius, what would be its change in resistance and resistivity if its original resistance is 20 ohm and resistivity is 10 ohm m. The temperature coefficient of iron is 5.0*10^-3 per oC.

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