A) 65%
B) 75%
C) 85%
D) 95%
Correct Answer: D
Solution :
Power \[P=VI\] \[\Rightarrow \] \[I=\frac{P}{V}=\frac{10\times {{10}^{3}}}{200}=50A\] \[\therefore \] Power loss\[={{I}^{2}}R={{(50)}^{2}}\times (0.2)=500\,W\] Therefore, efficiency of transmission \[=\frac{10000\times 100}{10000+500}\] \[=95.23%=95%\,(approx.)\]You need to login to perform this action.
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