engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Thermodynamics Refrigerators and heat pumps

यदि एक कार्नोट प्रशीतक 37°C और -3°C के बीच कार्य कर रहा है तो प्रशीतक का COP ________ है।

1
6.75
2
7.75
3
5.75
4
4.75
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