20. The yoke of a 6-pole DC machine has its external and internal diameters of 90 and 76cms respectively and axial length of 30cms. The armature is wave connected with 72 slots and 6 conductors per slot. The flux density in the yoke is 0.86T. Generated emf at the machine terminals for an armature speed of 900rpm is (a) 351V (c) 702V (b) 908V (d) 627V

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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20. The yoke of a 6-pole DC machine has its
external and internal diameters of 90 and
76cms respectively and axial length of
30cms. The armature is wave connected
with 72 slots and 6 conductors per slot. The
flux density in the yoke is 0.86T. Generated
emf at the machine terminals for an
armature speed of 900rpm is
(a) 351V
(c) 702V
(b) 908V
(d) 627V
Transcribed Image Text:20. The yoke of a 6-pole DC machine has its external and internal diameters of 90 and 76cms respectively and axial length of 30cms. The armature is wave connected with 72 slots and 6 conductors per slot. The flux density in the yoke is 0.86T. Generated emf at the machine terminals for an armature speed of 900rpm is (a) 351V (c) 702V (b) 908V (d) 627V
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