What is the formula for the cooling co-efficient to the rotating field coils? a) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 + armature voltage b) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 – armature voltage c) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 + armature voltage d) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 – armature voltage
What is the formula for the cooling co-efficient to the rotating field coils? a) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 + armature voltage b) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 – armature voltage c) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 + armature voltage d) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 – armature voltage
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