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Commutator performs rectification so that output of the machine is unidirectional.(a) True(b) FalseThis question was addressed to me in an online quiz.Question is from Armature Winding and Commutator topic in division Armature Windings of DC Machines

Answer»

Correct option is (a) True

For EXPLANATION I would say: Since it is a DC machine the generated output must be DC. Any electrical machine works on induced emf concept which is AC in nature. Commutator and brush ASSEMBLY of the DC machine performs the mechanical RECTIFICATION process so; induced AC is converted into DC(Unidirectional).



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