The amount of heat liberated to (or absorbed from) the surroundings in order that the junction may be kept at the same temperature is proportional to the current passing through the junction
where the constant is called the Peltier coefficient . The Peltier coefficient depends on the pair of materials A and B of the junction and also on the junction temperature.
liberated to (or absorbed from) the surroundings in order that the junction may be kept at the same temperature is proportional to the current 
passing through the junction 
is called the Peltier coefficient . The Peltier coefficient depends on the pair of materials A and B of the junction and also on the junction temperature. 
