A 220-V d.c. shunt motor runs at 500 r.p.m. when the armature current is 50 A....
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A 220-V d.c. shunt motor runs at 500 r.p.m. when the armature current is 50 A. Calculate the speed if the torque is doubled. Given that Ra = 0.2 Q A 220-V d.c. shunt motor runs at 500 r.p.m. when the armature current is 50 A. Calculate the speed if the torque is doubled. Given that Ra = 0.2 Q
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