A thermoelectric refrigerator works on

How do refrigerators work?

On what principle refrigerator works ? State-the construction and working of household refrigerator Derive an expression for it's co-efficient of performance .

A Carnot refrigerator works between two temperatures of 300 K & 600 K. Find the COP of the refrigerator if heat removed from lower temperature in 300 J.

A Carnot refrigerator works between two temperatures of 300 K & 600 K. Find the COP of the refrigerator if heat removed from lower temperature in 300 J.

Assertion: A heat engine is the reverse of a refrigerator. Reason : A refrigerator cannnot work without some external work done on the system

Assertion: A heat engine is the reverse of a refrigerator. Reason : A refrigerator cannnot work without some external work done on the system

Thermoelectric thermometer is based on

Thermoelectric constant of a thermocouple are alpha and beta . Thermoelectric power at inversion tempreture is

The coeffcient of performance of a refrigerator working between 10^(@)C and 20^(@)C is