To avoid formation of grooves in the commutator of a D.C. machine Options: A . &nbspThe brushes of opposite polarity should track each other B . &nbspThe brushes of same polarity should track each other C . &nbspBrush position has no effect on the commutator grooving D . &nbspAll of the above

To avoid formation of grooves in the commutator of a D.C. machine

Question

To avoid formation of grooves in the commutator of a D.C. machine

Options:

A . The brushes of opposite polarity should track each other

B . The brushes of same polarity should track each other

C . Brush position has no effect on the commutator grooving

D . All of the above

Answer: Option A

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