Ques. How are the remaining coils wound on the drum?
Ans. Each of the succeeding coils are wound as indicated in the table, the last connection being made to segment A, the one from which the winding started.
Ques. What is the general form of the completed winding?
Ans. It may be considered simply as a wire wound spirally around the drum, with loops brought down to the commutator segments, and ending at the segment from which the start was made.
The completed winding as indicated by the table is shown in [fig. 263]. Here the path of each coil is easily distinguished by means of the varied insulations although in part hidden by the drum. [Fig. 264] shows a developed view of the winding.
Fig. 264.—Developed view of the winding shown in perspective in [fig. 263].
Ques. What condition must obtain in winding an even number of coils?
Ans. The wire must not be wound around the drum to diametrically opposite positions, as for instance 1 to 7 in [fig. 265].
Ques. Why is this?