The resistance of a wire is given by
R R= + 0 t t + 2 ( )where t is the temperature in degrees Celsius measured on the ideal gas
scale and so R0 is the resistance at the ice point. The constants α and β
are 3.8 × 10−3K−1 and −3.0 × 10−6K−2, respectively. Calculate the temperature on the resistance scale at a temperature of 70°C on the ideal gas
scale.
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