Nature of the flux density wave in the air gap is__________ (for armat – McqOptions

MCQOPTIONS

1.	Nature of the flux density wave in the air gap is__________ (for armature current equal to 0)
A.	Flat topped with quarter wave symmetry
B.	Point topped with quarter wave symmetry
C.	Flat topped with half wave symmetry
D.	Point topped with half wave symmetry
Answer» B. Point topped with quarter wave symmetry

Discussion

No Comment Found

Related MCQs

WHAT_IS_THE_TORQUE_EQUATION_IN_TERMS_OF_B,_IC,_L,_ZR_(R=_MEAN_AIR_GAP_RADIUS)??$
What_is_the_value_of_pole_pitch_(in_SI_unit)_for_mean_air_gap_radius=_0.5mm_and_P=4?$
What is the value of Np in an average coil emf equation, for 10 armature conductors with 2 parallel paths?
Emf and torque produced in a DC machine are proportional to ________ and _________ respectively.
What is the average coil emf generated in a 4-pole DC machine having flux/pole equal to 0.1 wb rotating at 1500 rpm? (No. of coil sides = 100)
Average coil emf for 20 coil turns (E1) and 40 coil turns (E2), will have ratio E1/E2=____ (assuming all other parameters same for both machines).
Emf produced by DC machine, for zero armature current (E1) and non-zero armature current (E2) can be related as__________
Nature of the flux density wave in the air gap is__________ (for armature current equal to 0)
In which mode machine is operating, given that conductor current is in the same direction of conductor emf?