Thomson effect and its explanation

• Thomson effect is improvised effect on Peltier effect.
• When current flows through thermo couple, then heat energy is evolved or absorbed not only at junctions, but it is absorbed or evolved  all along one or both the conductors.
• Thomson coefficient is nothing but the heat energy is evolved or absorbed  when a current of 1A flows for one second between two points of a conductor which differ in temperature of one degree centigrade.