The thermoelectric powers of iron and copper with respect to lead are +10.5 and `-3.5 mu V`
Channel: Doubtnut
Date: 23/08/2020

The thermoelectric powers of iron and copper with respect to lead are +10.5 and `-3.5 mu V` respectively at `100^(@)C` . Find the emf of Cu-Fe thermocouple when its junctions are maintained at `50^(@)` and `150^(@)` C.