What is the difference of DC voltages in the adjoining Brushes?(a) Depends on the Shaft speed(b) Zero(c) Non-zero(d) Depends on the various other parametersThis question was posed to me during an online exam.I'd like to ask this question from Armature Winding and Commutator in division Armature Windings of DC Machines

What is the difference of DC voltages in the adjoining Brushes?(a) Dep

1.	What is the difference of DC voltages in the adjoining Brushes?(a) Depends on the Shaft speed(b) Zero(c) Non-zero(d) Depends on the various other parametersThis question was posed to me during an online exam.I'd like to ask this question from Armature Winding and Commutator in division Armature Windings of DC Machines
Answer» Right answer is (b) Zero For EXPLANATION: Brushes are located electrically in the magnetically NEUTRAL region. Due to their location adjoining brushes are at constant DC voltage and the coil in series between the CONSTITUTE one parallel PATH.

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