A) \[\pi /3\]
B) \[\pi /2\]
C) \[\pi /4\]
D) \[\pi /6\]
Correct Answer: A
Solution :
From the condition of the question the reactance of the coil is\[\sqrt{3}\] times of resistance, so \[Z=\sqrt{3}R\] \[\phi ={{\tan }^{-1}}\frac{Z}{R}={{\tan }^{-1}}3\] Therefore, \[\phi =\frac{\pi }{3}\]You need to login to perform this action.
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