Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A thermoelectric refrigerator works on
Text Solution
Verified by ExpertsThe correct answer is:
C
Step 1: Understand the Thermoelectric Effect.
Thermoelectric refrigerators operate based on the principles of thermoelectric effects, primarily the Peltier effect. This effect relates to the temperature change resulting from an electrical current passing through a junction of two different conductors or semiconductors.
Step 2: Distinguish between options.
Thus, the thermoelectric refrigerator works specifically on the Peltier effect, making option C the correct answer.
Thermoelectric refrigerators operate based on the principles of thermoelectric effects, primarily the Peltier effect. This effect relates to the temperature change resulting from an electrical current passing through a junction of two different conductors or semiconductors.
Step 2: Distinguish between options.
- Joule effect: This effect refers to the heating of a conductor when an electric current passes through it. It does not apply to refrigeration.
- Seebeck effect: This effect generates a voltage difference when there is a temperature differential across two different conductors. It is related to thermoelectric generators, not refrigerators.
- Peltier effect: This is the principle behind thermoelectric refrigeration as it describes how a current can cause heat absorption or release at a junction, allowing for cooling.
- Thermionic emission: This involves the emission of electrons from a heated material and is unrelated to thermoelectric refrigeration.
Thus, the thermoelectric refrigerator works specifically on the Peltier effect, making option C the correct answer.
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