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In DC series machine∅ is directly proportional to Ia.(a) True(b) FalseI got this question in unit test.This question is from Dynamic Braking of DC Series Motors topic in section Braking of DC Motors & Induction Motors of Electric Drives

Answer»

Correct option is (a) True

To elaborate: In series DC MACHINE, the field WINDING is in series with the armature winding. The armature current FLOWS through the field winding. F=NIa=R∅. Ia∝∅.



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