A) \[10\,\sqrt{2}A\]
B) \[20\,\sqrt{2}A\]
C) \[10A\]
D) \[20A\]
Correct Answer: A
Solution :
Power, \[P=\frac{{{V}_{0}}{{I}_{0}}}{2}\cos \phi \] \[\Rightarrow \] \[1000=\frac{1}{2}\times 200\times {{I}_{0}}\times \cos 60{}^\circ \] \[\Rightarrow \] \[{{I}_{0}}=20A\] or \[{{I}_{rms}}=\frac{{{I}_{0}}}{\sqrt{2}}=\frac{20}{\sqrt{2}}=10\sqrt{2}A\]
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