Q. Thermocouple used in radio micrometer and thermo-galvanometer is (Solved)
1. Antimony - bismuth couple
2. Copper constant couple
3. Copper iron couple
4. Iron - copper couple
5. None of the above
- a. Antimony - bismuth couple
1. Antimony - bismuth couple
2. Copper constant couple
3. Copper iron couple
4. Iron - copper couple
5. None of the above