The armature of a dc machine is laminated to reduce: (A) Eddy current loss (B) Hysteresis loss (C) copper losses (D) friction and windage losses

The armature of a dc machine is laminated to reduce:
 (A) Eddy current loss (B) Hysteresis loss
 (C) copper losses (D) friction and windage losses
by

1 Answer

Answer :

Ans: A
Thinner the laminations, greater is the resistance offered to the induced e.m.f.,
smaller the current and hence lesser the I2R loss in the core.
by

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