Describe the principle of thermoelectric. State thermoelectric materials.

Describe the principle of thermoelectric. State thermoelectric materials.
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1 Answer

Answer :

Thermoelectric effect also called as seeback effect. Principle:When two disimilar metals are connected with each other at their ends a thermocouple junction is formed.this thermocouple junction formed between them when kept at different temperatures,An EMF is generated this EMF is known as Thermoelctric emf. This thermoelectric emf will force a continous current this current is known as thermoelectric current and the whole phenomenon is called as thermoelectric effect or Seeback effect 

The most commonly used thermoelctric material as a rhermocouple are (any one) 1)copper-constantan 2)iron –constantan 3)chromel –constantan.
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