Interpoles in a DC motor must be

Q. Interpoles in a DC motor must be

A.            Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of the armature.

B.            Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of the armature.

C.            Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of the armature.

D.            Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of the armature

Answer: Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of the armature.