Peltier Effect: In 1834, Jean Charles Athanase Peltier, a French watchmaker turned scientist discovered a thermoelectric effect, which is the converse of the Seebeck Effect. He discovered that when current is passed through a junction between two conductors, heat is either evolved or absorbed. When the direction of the current is reversed, the heating effect is also reversed. The absorption or evolution of heat at a junction of two dissimilar metals when current is passed is known as the Peltier effect. Figure a shows an example of the Peltier Effect. We have two junctions of iron and copper (A and … Continue reading Peltier Effect