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What is produced when a thermo-junction is heated?

What is produced when a thermo-junction is heated? Correct Answer Electromotive force

  • When a thermo-junction is heated, an electromotive force is produced. 
  • This phenomenon is known as known Seeback effect.
  • The Seebeck effect is a phenomenon in which a temperature difference between two dissimilar electrical conductors or semiconductors produces a voltage difference between the two substances.
  • Copper and bismuth are the two most common dissimilar conductors which produce the Seebeck effect.

Additional InformationThe first person who observed the Thermoelectric Effect was Thomas Seebeck. 

Thermoelectric Effect: The thermoelectric effect involves the process by which heat is transformed into electrical energy such that if the cycle is thermodynamically reversible known to be the Seebeck effect achieved in thermoelectric generation systems.

  • The presence of Joule heating and thermal conduction holds that the efficiency of real thermoelectric systems is always less than that of the Carnot.
  • The thermoelectric effect allows converting waste heat into electric power.

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