If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens____________?

A. this will make armature to take heavy current, possibly burning itCorrect Answer

B. this will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses

C. nothing will happen to motor

D. motor will come to stop

Correct Option: A. this will make armature to take heavy current, possibly burning it

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