Electrical Engineering Questions And Answers :: Dc Generators: part1

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Electrical Engineering : Dc Generators QUESTIONS AND ANSWERS :: part1 : 21 to 25

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :

21.In a four-pole D.C. machine

all the four poles are north poles
alternate poles are north and south
all the four poles are south poles
two north poles follow two south poles

22.According to Fleming's right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of

motion of conductor
lines of force
either of the above
none of the above

23.While applying Fleming's right-hand rule to And the direction of induced e.m.f., the thumb points towards

direction of induced e.m.f.
direction of flux
direction of motion of the conductor if forefinger points in the direction of generated e.m.f.
direction of motion of conductor, if forefinger points along the lines of flux

24.Fleming's right-hand rule regarding direction of induced e.m.f., correlates

magnetic flux, direction of current flow and resultant force
magnetic flux, direction of motion and the direction of e.m.f. induced
magnetic field strength, induced voltage and current
magnetic flux, direction of force and direction of motion of conductor

More Dc Generators QUESTIONS AND ANSWERS available in next pages

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