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Carnot Cycle

In a metal wi...

Question

In a metal with positive Thomson coefficient, current is passed from the lower temperature to higher temperature side. The heat will be

A

absorbed

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B

constant

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C

evolved

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D

either B or C

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Solution

The correct option is A absorbed
A positive Thomson coefficient means that the side with higher temperature has the higher potential.
So, current is passed from lower potential to higher potential side.
Thus this opposition causes energy to be absorbed.

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