A) 0.25
B) 0.33
C) 0.67
D) 0.9
Correct Answer: A
Solution :
[a] \[{{Q}_{2}}=3W\] \[{{Q}_{1}}-{{Q}_{2}}=W\] \[{{Q}_{1}}=4W\] \[\eta =1-\frac{{{Q}_{2}}}{{{Q}_{1}}}=1-\frac{3}{4}=\frac{1}{4}\]You need to login to perform this action.
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