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As There Is No Back E

Question 9

Multiple Choice

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

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