A bipolar dc machine with interpoles has a main-pole flux of ф per pole and an interpole flux of Фᵢ per pole.

The yoke of the machine is divide into four quadrants by the main-pole axis and the commutation axis.

The flux-distribution in the quadrants will be

A. ½ ( ф + фᵢ ) in all the four quadrants

B. ½ ( ф - фᵢ ) in all the four quadrants

C. ½ ( ф + фᵢ ) in two diametrically opposite quadrants and ½ ( ф - фᵢ ) in the remaining two Quadrants

D. ½ ( ф + фᵢ ) in two adjacent quadrants and ½ ( ф - фᵢ ) in the remaining two quadrants

## Show Answer

Answer: C

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