Question

27. When speed of a dc motor increases, the armature current
(1) Increases
(2) Decreases
(3) Does not change
(4) Increases and decreases continuously


28. The armature of dc motor has 2 ohm resistance. It draws current of 1.5 A when run by 220 V dc supply.The
value of back emf induced in it will be
(1) 150V
(3)180 V
(2) 170 v
(4) 190 V

Answer 1

Answer:

increases

Explanation:

increses also