In a single-phase ac circuit, the supply voltage, supply and current are given by:
v = 200 sin (120 πt - \(\frac {π} {6}\)) and i = 10 sin (120 πt + \(\frac {\pi} {6}\)). Then input power factor and input power are
1
0.5 lagging, 2 kW respectively
2
0.5 lagging, 0.5 kW respectively
3
0.5 leading, 0.5 kW respectively
4
0.5 leading, 2 kW respectively
5
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