Question
Physics Question on Electromagnetic induction
A thermoelectric refrigerator works on
A
Joule effect
B
Seebeck effect
C
Peltier effect
D
Thermionic effect
Answer
Peltier effect
Explanation
Solution
Refrigeration is the process of pumping heat energy out of an insulated chamber in order to reduce the temperature of the chamber below that of the surrounding air. Thermoelectric refrigeration uses a principle called the Peltier effect to pump heat electronically. According to this effect when electric current is applied across the junction of two dissimilar metals, heat is removed from one of the metals and transferred to the other.