Home
Class 12
PHYSICS
Assertion: Thermocouple acts as a heat e...

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

A

If both Assertion `&` Reason are True `&` the Reason is a correct explanantion of the Assertion

B

If both Assertion `&` Reason True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False

D

If both Assertion `&` Reason are False.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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

Assertion: When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermo couple is raised. Reason: When the difference of temperature of two junction is raised. More thermo emf is produced.

The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouple

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

Assertion: A room can be cooled by opening the door of a refrigerator in a closed room. Reason: Heat flows from lower temperature to higher temperature.

A metallic rod having area of cross section A, Young's modulus Y, coefficient of linar expansion alpha and length L tied with two strong pillars. If the rod is heated through a temperature t ^(@)C then how much force is produced in rod ?

As the temperature of hot junction increases, the thermo e.m.f.

First order derivation of thermo emf produced in thermo-couple with respect to temperature gives ......

Assertion: Through the same current flows through the line wires and the filament of the bulb but heat produced in the filament is much higher than that in line wires. Reason: The filament of bulbs is made of a material of high resistance and high melting point.

The thermo emf of a thermocouple is given by E=2164t-6.2t^2 Determine the neutral temperature and inversion temperature.