Module 4 : THERMOELECTRICITY
Lecture 21 : Seebeck Effect:
Thermoelectric Power
\includegraphics{fig4.2.eps}
 
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  The open circuit potential difference in the circuit whose junctions are maintained at temperatures $T_h$ and $T_c (<T_h)$ is given by
 
\begin{displaymath}\Delta V = S_{AB}(T_h-T_c)\end{displaymath}
 
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