One junction of a certain thermoelectric couple is at a fixed temperature 
and the other junction is at temperature T. The thermo electromotive force for this is expressed by 
. At temperature 
, the thermoelectric power is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
We know that thermoelectric power 
Given 
By differentiating the above equation w.r.t. T and
Putting 
we get 
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