Thermocouples are used to measure temper...

Thermocouples are used to measure temperature in the linear parts of the emf versus temperature graph wilth cold junction at `0^(@)C`. The thermo electric power of Pt, Ni thermocouple are =-4 and -20 microcolt per `.^(@)C` respectively. What will be the magnitudes of emfs of the thermocopule when thecold junction is at `0^(@)C` and the hot junction is at `100^(@)C`?

4mV

2mV

3.2mV

1.6 mV

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