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Current flowing through the armature conductors Ic is related to total current Ia by_______

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Current flowing through the armature conductors Ic is related to total current Ia by_______

(a) Ic = A Ia

(b) Ic = Ia/A

(c) Ic = A^2 Ia

(d) Ic = A/Ia

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Question is from Lap Winding topic in portion Armature Windings of DC Machines

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The correct option is (b) Ic = Ia/A

The best I can explain: Two positive and two negative brushes are respectively connected in parallel for feeding the external circuit. As per the ring diagram Ia splits into the number of poles equally. Poles = Parallel paths. Thus, Ic = Ia /A.

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