A) \[63.8\text{ }%\]
B) \[83.3\text{ }%\]
C) \[16.7%\]
D) \[36.2%\]
Correct Answer: B
Solution :
[b] Power of source \[=El=240\times 0.7=166\] Efficiency \[\Rightarrow \,\,Efficiency\,=\frac{140}{166}\Rightarrow \,\eta \,=83.3%\]You need to login to perform this action.
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