Saved Bookmarks
| 1. |
What is the coefficient of performance of a system, if its work input is 75 J and heat removed is 45 J?(a) 20%(b) 40%(c) 60%(d) 80% |
|
Answer» The correct answer is (c) 60% The best I can explain: Coefficient of performance = 45/75*100 = 60%. |
|