Q.

A dc series motor is used for an overhauling load, it can work stably if 

  • AThe armature is shunted by a resistor
  • BThe field winding is reversed
  • CA resistor is put in series with the machine
  • DA diverter is put across the field 
Correct Answer : (A)

The armature is shunted by a resistor

Hints :

A dc series motor is used for an overhauling load, it can work stably if  the armature is shunted by a resistor.

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