In case the back e.m.f. and the speed of a D.C. motor are doubled, the – McqOptions

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1.	In case the back e.m.f. and the speed of a D.C. motor are doubled, the torque developedby the motor will
A.	remain unchanged
B.	reduce to one-fourth value
C.	increase four folds
D.	be doubled
Answer» B. reduce to one-fourth value

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