1.A 50 H.P., 3-f, 6-pole induction motor delivers full load output at 960 rpm at 0·8 p.f. when suppliedwith 400V, 50Hz supply. Losses due to windage and friction come out to be 2H.P. and stator lossesare 2 kW. Find out. (a) total rotor Cu loss; (b) efficiency and (c) line current.
