No-load test on a 3-phase induction motor was conducted at different supply voltage and a plot of input power versus voltage was drawn. This curve was extrapolated to intersect the y-axis. The intersection point yields
(A) Core loss (B) Stator copper loss (C) Stray load loss (D) Friction and windage loss
(A) Core loss (B) Stator copper loss (C) Stray load loss (D) Friction and windage loss