If the rotor of an induction motor is made to revolve in a direction opposite to the rotating flux wave, then RMS value of EMF induced in one phase of rotor E is proportional to ____________
(a) 2-s
(b) s
(c) 1-s
(d) 2+s
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My question is from Generated EMF in division Principles of Electro mechanical Energy Conversions of Electrical Machines