A d.c. shunt motor runs at no load speed of 1140 r.p.m. At full load, armature reaction
weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The
motor full load speed in r.p.m. is
(A) 1080 (B) 1203
(C) 1000 (D) 1200
weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The
motor full load speed in r.p.m. is
(A) 1080 (B) 1203
(C) 1000 (D) 1200