The coefficient of performance of a Carnot refrigerator working between `30^(@)C & 0^(@)C` is

The coefficient of performance of a Carnot refrigerator working between 30^(@)C and 0^(@)C is

The coefficient of performance of a Carnot refrigerator working between 30^(@) C and 0^(@) C is

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

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

Calculate the coefficient of performance of an ideal refrigerator working between -13 ^(@)C and 27^(@)C ?

Define coefficient of performance of a refrigerator.

ExpIain coefficient of performance of a refrigerator.

What is coefficient of performance of a refrigerator ?

What is the co- efficient of performance (beta) or a carnot refrigerator working between 40^(@) and 0^(@)C ?