A metal bar 10 cm long is maintained with one end at T = 273 K and the other at

Question

A metal bar 10 cm long is maintained with one end atT = 273 K and the other at 283 K. The thermoelectricpotential difference thus induced across the ends is 12.6µV. Find the thermoelectric power for the metal in thistemperature range. Note: Q varies nonlinearly with temperature, but overthis narrow temperature range you many use a linearapproximation.
A metal bar 10 cm long is maintained with one end atT = 273 K and the other at 283 K. The thermoelectricpotential difference thus induced across the ends is 12.6µV. Find the thermoelectric power for the metal in thistemperature range. Note: Q varies nonlinearly with temperature, but overthis narrow temperature range you many use a linearapproximation.

Explanation / Answer

A metal bar 10 cm long is maintained with one end atT = 273 K and the other at 283 K. The thermoelectricpotential difference thus induced across the ends is 12.6µV. Find the thermoelectric power for the metal in thistemperature range. Note: Q varies nonlinearly with temperature, but overthis narrow temperature range you many use a linearapproximation.
thermoelectric power=[12.6/10]/0.1=12.6V/ 0Cm

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