A) \[220\sqrt{2}\,V\]average voltage
B) 220 V average voltage
C) voltage and current out of phase by \[\pi /2\]
D) voltage and current possibly differing in phase \[\phi \] such that \[|\phi |<\frac{\pi }{2}\]
Correct Answer: D
Solution :
(d) voltage and current possibly differing in phase \[\phi \] such that \[|\phi |<\frac{\pi }{2}\]. As the line has some resistance \[(R\ne 0)\], voltage and current differ in phase \[\phi \] such that \[|\phi |<\frac{\pi }{2}\].
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