MHT CET Physics question
The thermo e. m. f. of a thermocouple is V/K at room temperature. A galvanometer of resistance is capable of detecting a current of the order A. The smallest temperature difference that can be detected with this galvanometer is
Answer: (C)
Solution
The smallest detectable emf is V, so K,
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account