Eddy currents are induced in the pole shoes of a D.C. machine due to$? – McqOptions

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1.	Eddy currents are induced in the pole shoes of a D.C. machine due to$?
A.	Oscillating magnetic field
B.	Pulsating magnetic flux
C.	Relative rotation between field and armature
D.	All above
Answer» D. All above

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