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Resultant pitch in the lap winding is__________

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Resultant pitch in the lap winding is__________

(a) Depends on Yb value

(b) Depends on Yf value

(c) Depends on Yb and Yf value

(d) Always equal to 2

I had been asked this question in homework.

Query is from Lap Winding in division Armature Windings of DC Machines

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The correct option is (d) Always equal to 2

Explanation: In a lap winding the “finish” of one coil is connected to “start” of the adjoining coil. The coil side displacement of the front-end connection is called the front-pitch. The coil side displacement of the back-end connection is called the back-pitch. Resultant-pitch is equal to difference between Yb and Yf which is equal to 2, irrespective of Yb and Yf value.

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