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The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouple
- a)is negative
- b)is positive
- c)is zero
- d)depends upon the choice of the two materials of the thermocouple
Correct answer is option 'C'. Can you explain this answer?
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The rate of increase of thermo-emf with temperature at the neutral te...
Thermo-emf with temperature at the neutral point of a thermocouple is maximum. So, the rate of increase of thermo-emf with temperature at the neutral point of a thermocouple is zero.
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The rate of increase of thermo-emf with temperature at the neutral te...
Explanation:
The thermo-emf of a thermocouple is the voltage generated when there is a temperature difference between the two junctions of the thermocouple. It is directly proportional to the temperature difference between the two junctions.
At the neutral temperature of a thermocouple, the temperature difference between the two junctions is zero. Therefore, the rate of increase of thermo-emf with temperature is zero.
Reasoning:
The thermo-emf of a thermocouple is determined by the thermoelectric properties of the two materials used in the thermocouple. These properties include the Seebeck coefficient, which is a measure of how much voltage is generated per degree of temperature difference.
When the two junctions of the thermocouple are at the same temperature, there is no temperature difference, and therefore no thermo-emf is generated. As the temperature difference increases, the thermo-emf also increases.
At the neutral temperature, the two junctions are at the same temperature, and there is no temperature difference. Therefore, the rate of increase of thermo-emf with temperature is zero.
Conclusion:
The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouple is zero. This means that the thermo-emf does not change with temperature at this point.
The thermo-emf of a thermocouple is the voltage generated when there is a temperature difference between the two junctions of the thermocouple. It is directly proportional to the temperature difference between the two junctions.
At the neutral temperature of a thermocouple, the temperature difference between the two junctions is zero. Therefore, the rate of increase of thermo-emf with temperature is zero.
Reasoning:
The thermo-emf of a thermocouple is determined by the thermoelectric properties of the two materials used in the thermocouple. These properties include the Seebeck coefficient, which is a measure of how much voltage is generated per degree of temperature difference.
When the two junctions of the thermocouple are at the same temperature, there is no temperature difference, and therefore no thermo-emf is generated. As the temperature difference increases, the thermo-emf also increases.
At the neutral temperature, the two junctions are at the same temperature, and there is no temperature difference. Therefore, the rate of increase of thermo-emf with temperature is zero.
Conclusion:
The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouple is zero. This means that the thermo-emf does not change with temperature at this point.
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The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouplea)is negativeb)is positivec)is zerod)depends upon the choice of the two materials of the thermocoupleCorrect answer is option 'C'. Can you explain this answer?
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