Q. 36 A 220 V, 15 kW, 100 rpm shunt motor with armature resistance of 
has a
rated line current of 68 A and a rated field current of 2.2 A. The change in field
flux required to obtain a speed of 1600 rpm while drawing a line current of 52.8 A
and a field current of 1.8 A is
(A) 18.18% increase
(B) 18.18% decrease
(C) 36.36% increase
(D) 36.36% decrease
Answer:(D)
Explanation:
