Question

what is Peltier effect ? define clearly , no spam answer plz

Answer 1

PELTIER effect :

Evolution or absorption of heat at the junction when current is passed through a thermocouple is called peltier effect .

Heating or cooling depends on the direction of current .

This is a reversible process

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Answer 2

an effect whereby heat is given out or absorbed when an electric current passes across a junction between two materials.
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.For example, when copper wire and bismuth wire are connected in an electric circuit, heat is generated at the point where current passes from copper to bismuth, and a drop in temperature occurs where the current passes from bismuth to copper. This effect is reversible in nature. The heating or cooling effect observed at a junction can be reversed by changing the direction of the current flow.

The phenomenon behind the Peltier effect is used in the function of thermoelectric heat pumps and thermoelectric cooling devices. It is also used for cooling computers and other electronic equipment when other methods are not feasible.....