DC Motors
______ motor has the best speed regulation.

Shunt
Series
Cummulative compounded
Differentially compounded

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DC Motors
If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens

This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses
This will make armature to take heavy current, possibly burning it
Motor will come to stop
Nothing will happen to motor

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