Question

Plot a labelled graph to show variation of thermo-emf ${}^{\prime }{e}^{\prime }$ versus temperature difference ${}^{\prime }{\theta }^{\prime }$ between the two junctions of a thermocouple. Mark ${}^{\prime }{N}^{\prime }$ as neutral temperature and ${}^{\prime }{I}^{\prime }$ as temperature of inversion

Answer 1

The variation of thermo-emf vs temperature difference between the two junctions of a thermocouple is as shown in the figure. Here,

$N$: Neutral Temperature

$I$: Temperature of immersion