A) 80%
B) 60%
C) 40%
D) 20%
Correct Answer: D
Solution :
\[{{\eta }_{th}}=\frac{{{w}_{t}}-{{w}_{c}}}{{{q}_{s}}}=\frac{600-400}{1000}=\frac{200}{1000}=0.2\,\,or\,\,20%\]You need to login to perform this action.
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