# A 4-pole lap wound dc armature has a bore diameter of 07mit has 560 conductors and the ratio of pole

A 4-pole lap wound dc armature has a bore diameter of 07mit has 560 conductors and the ratio of pole arc/pole pitch is 063the armature is running at 600 rpm and the flux density in the air gap is 12 wb/m2 determine the induced emf in the armature if the effective length of armature conductor is 20 cm