Show, with the help of a labelled graph, how thermo emf .e. developed by a thermocouple varies with `theta`, the temperature difference between the two junctions. On the graph, mark neutral temperature as `theta_(N)` and temperature of inversion as `theta_(1)`.

Plot a labelled graph to show variation of thermo-emf .e. versus temperature difference .theta. between the two junctions of a thermocouple. Mark .N. as neutral temperature and I as temperature of inversion. (ii) What is Peltier effect ?

If the cold junction of thermocouple is kept at 0^(@)C and the hot junction is kept at T^(@)C , then the relation between neutral temperature (T_(n)) and temperature of inversion (T_(i)) is

The thermo e.m.f. E in volts of a certain thermocouple is found to vary with temperature difference q in .^(@)C between the two junctions according to the relation E=30 theta-(theta^(2))/(15) The neutral temperature for the thermo-couple will be:-

The emf varepsilon of a Cu-Fe thermocouple varies with the temperature theta of the hot junction (cold junction at 0^(@)C ), as varepsilon(mu V)=14 theta-0.02 theta^(2) Determine the neutral temperature.

Thermo e.m.f. E of a Cu-Fe thermocouple varies with the temperature theta of the hot junction ( cold juction 0^(@)C ) as E(muV)=12theta-0.02 theta^(2) . Determine:- (a) Neutral temperature of the termocouple (b) Temperature of inversion, assuming that cold junction is at 20^(@)C . (c) Value of Seebeck coefficient at neutral temperature

Above neutral temperature, thermo e.m.f. in a thermocouple

Two liquids of specific heat ratio 1:2 are at temperature 2theta and theta

The thermo emf E of a thermocouple is found to vary wit temperature T of the junction (cold junction is 0^(@)C ) as E=40T-(T^(2))/(20) The temperature of inversion for the thermocouple is

Assertion: Thermocouple acts as a heat engine. Reason: When two junctions of thermcouple are at different temperature, thermo emf is produced.

The cold junction of a thermocouple is at 0^(@)C . The thermo e.m.f. epsilon , in volts, generated in this thermocouple varies with temperature t^(@)C of the hot junction as epsilon=6+4t-(t^(2))/(32) . The neutral temperature of the thermocouple