rrbrailwayrecruitment.inA 4 - pole, 1500 r p.m. alternator will generate e.m.f. at (A) 20 (B) 60 Hz...
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rrbrailwayrecruitment.inA 4 - pole, 1500 r p.m. alternator will generate e.m.f. at (A) 20 (B) 60 Hz (C) 40 Hz In examination, a student gets marks for overv correct ansvver and loses