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Question

(D) The phenomenon where heat is evolved or absorbed along the length of a single conductor carrying a current when its different parts are maintained

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Thomson effect

Vedclass · Answer

(D) The phenomenon where heat is evolved or absorbed along the length of a single conductor carrying a current when its different parts are maintained at different temperatures is known as the $Thomson$ effect.$1$. $Joule$ effect refers to the heat produced due to the resistance of a conductor $(H = I^2Rt)$.$2$. $Seebeck$ effect involves the generation of an electromotive force $(EMF)$ in a circuit consisting of two dissimilar metals with junctions at different temperatures.$3$. $Peltier$ effect is the reverse of the $Seebeck$ effect,where heat is absorbed or evolved at the junction of two dissimilar metals when a current is passed through them.$4$. Therefore,the correct answer is the $Thomson$ effect.

When a current passes through a wire whose different parts are maintained at different temperatures,the evolution or absorption of heat all along the length of the wire is known as:

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