A) 500 W
B) 2000 W
C) 1000W
D) 100W
Correct Answer: C
Solution :
The instantaneous current and voltage of an AC circuit are given by \[i=10\text{ }sin\text{ }300t\text{ }A\text{ }and\text{ }V=200\text{ }sin\text{ }300t\text{ }V.\] The average power loss over a complete cycle is given by \[p=V/\cos \phi \] where, V and\[I\]are the rms value of voltage and current, Here phase difference \[\phi =0{}^\circ \] The average power loss over a complete cycle \[P=\frac{10}{\sqrt{2}}\times \frac{200}{\sqrt{2}}\times \cos 0{}^\circ =1000\,W\]You need to login to perform this action.
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