Question

Amount of heat energy absorbed or evolved when 1 A of current passes for 1 second through a portion of metal kept at a temperature difference of $1^{o}C$ is called

• A. thermo e.m.f.
• B. thomson co-efficient
• C. thermoelectric power
• D. peltier coefficient

Answer 1

The correct option is B thomson co-efficient

If one part of a conductor is at different potential than the other or current is flowing,then a temperature difference is developed at two sections. This is called Thomson effect. So the given definition is called thomson co-efficient.