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Q. |
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» A. a resistance is connected in series with armature |
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