1.

What is the formula of the pole arc of the universal commutator motor?

A. pole arc = ratio of armature axial length to armature diameter * pole pitch
B. pole arc = ratio of armature axial length to armature diameter + pole pitch
C. pole arc = ratio of armature axial length to armature diameter – pole pitch
D. pole arc = ratio of armature axial length to armature diameter / pole pitch
Answer» C. pole arc = ratio of armature axial length to armature diameter ‚Äö√Ñ√∂‚àö√ë‚àö¬® pole pitch


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