Question:
Which of the following is a characteristic temperature for the thermocouple?
Which of the following is a characteristic temperature for the thermocouple?
Updated On: Jun 2, 2024
- Temperature of cold junction
- Temperature of hot junction
- Temperature of inversion
- Neutral temperature
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The Correct Option is D
Solution and Explanation
Thermocouple is based on See beck effect. If one junction is at $0^{\circ} C$ and the other att ${ }^{\circ} C$, then the thermo emf is given by $E=a t + b t^{2}$ where a and b are constants for the pair of metals. As the temperature of the hot junction rises, the thermo emf increases and becomes maximum at a particular temperature. This temperature is called neutral temperature and has different values for different pairs of metals. Temperature at which thermo emf becomes zero is called inversion temperature. Hence, neutral temperature is a characteristic temperature.
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Concepts Used:
Waves
Waves are a disturbance through which the energy travels from one point to another. Most acquainted are surface waves that tour on the water, but sound, mild, and the movement of subatomic particles all exhibit wavelike properties. inside the most effective waves, the disturbance oscillates periodically (see periodic movement) with a set frequency and wavelength.
Types of Waves:
Transverse Waves -
Waves in which the medium moves at right angles to the direction of the wave.
Examples of transverse waves:
- Water waves (ripples of gravity waves, not sound through water)
- Light waves
- S-wave earthquake waves
- Stringed instruments
- Torsion wave
The high point of a transverse wave is a crest. The low part is a trough.
Longitudinal Wave -
A longitudinal wave has the movement of the particles in the medium in the same dimension as the direction of movement of the wave.
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- Sound waves
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