4. f (@) What is the full-load kVA input of a 14 hp 250 V three-phase induction motor with a full load current of 53 A per terminal? (b) What is the full-load kilowatt input of this motor at full load if the power factor is 79%? (c) What is the efficiency of this motor at full load? 5. Three 13 ohm resistors are wye-connected to a 240 V, three-phase line Find: @ the current through each resistance. (b) the line current. (c) the total power delivered to the three resistors. (d) the power factor. 6. Repeat (a), (b) and (c) of the preceding problem if the resistors are delta connected.