The ratio of the readings of two wattmeters connected to measure power in a balanced 3-phase load is 3 ∶ 2 and the load is inductive. The power factor of the load is
1
cos{tan-1 (0.577)} lagging
2
cos{tan-1 (0.577)} leading
3
cos{tan-1 (0.346)} lagging
4
cos{tan-1 (0.346)} leading