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Consider a dc machine having its armature wound in lap fashion having 12 coils and each resistance 0.1 ohms. If it is measured resistance between two adjacent commutator segments, the result will be _________

Consider a dc machine having its armature wound in lap fashion having 12 coils and each resistance 0.1 ohms. If it is measured resistance between two adjacent commutator segments, the result will be _________ Correct Answer 0.092 ohms

There are 11 resistance which are in parallel to one resistance. So taking the equivalent resistance of 11 series connected resistance and the one single resistance of the commutator segment. R(eq) = 0.1||1.1 = 0.0917.

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