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1. |
__As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit__ |
A. | A resistance is connected in series with armature |
B. | A resistance is connected parallel to the armature |
C. | Armature is temporarily open circuited |
D. | A high value resistor is connected across the field winding |
Answer» B. A resistance is connected parallel to the armature | |