Rankers Physics

Power in AC Circuits: Practice Problem & Solution

A coil has power factor of 0.707 at 60 Hz. Then its power factor at 180 Hz will be :-
\[\frac{1}{\sqrt{2}}\]
\[\frac{1}{\sqrt{5}}\]
\[\frac{1}{\sqrt{10}}\]
\[\sqrt{\frac{5}{2}}\]

No solution provided for this question.

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