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NEET2009PhysicsCurrent ElectricityActual

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

Options

  1. Aabsorbed
  2. Bconstant
  3. Cevolved
  4. Deither ' b ' or ' c '

Correct answer

A. absorbed

Step-by-step solution

According to Thomson's effect the potential at a point of lower temperature is lower than at the point at higher temperature which is at higher potential. When current is passed from lower temperature to higher temperature of a metal, work is to be done, hence energy is absorbed.

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