What happens to the speed when the flux is reduced by 10% in a 200 V dc shunt motor having an armature resistance of 0.2 ohm carrying a current of 50 A and running at 960 rpm prior to weakening of field.
The total torque maybe assumed constant. Neglect losses.
A. 1250 rpm.
B. 1066 rpm.
C. 920 rpm.
D. 576 rpm.
Show Answer
Answer: B
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