Losses which occur in rotating electric machines and do not occur in transformers are
A)friction and windage losses
B)magnetic losses
C)hysteresis and eddy current losses
D)copper losses

Question

Quizplus · Accepted Answer

Friction and windage losses are specific to rotating electric machines due to the mechanical movement of their parts, such as bearings and air resistance on the rotor. Transformers, being static devices, do not have moving parts, hence do not experience these losses.

Losses Which Occur in Rotating Electric Machines and Do Not