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 - Study24x7
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26 Mar 2019 10:13 AM study24x7 study24x7

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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