A) \[\frac{1}{2}\]
B) \[\frac{1}{3}\]
C) \[\frac{1}{\sqrt{3}}\]
D) \[\frac{1}{\sqrt{2}}\]
Correct Answer: A
Solution :
We know that,\[{{i}_{wL}}={{i}_{rms}}\sin \phi \] \[\Rightarrow \] \[\sqrt{3}=2\sin \phi \] or \[\sin \phi =\frac{\sqrt{3}}{2}\] \[\Rightarrow \] \[\phi ={{60}^{o}}\] So, power factor\[=\cos \phi =\cos {{60}^{o}}=\frac{1}{2}\]You need to login to perform this action.
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