In DC generator, full form of MNA is what?
A. Magnetic no-load axis.
B. Magnetic neutral axis.
C. Magnetic neutral armature co-ordinate.
D. Magnetically no-load armature co-ordinate.
Answer: B
Share your understanding of this question with the correct explanation.
In DC generators, MNA stands for Magnetic Neutral Axis.
The Magnetic Neutral Axis refers to the axis along which the magnetic field produced by the field poles is perpendicular to the direction of the armature conductors. It is the axis where the armature conductors experience minimum magnetic interference or armature reaction.
Therefore, the correct answer is option B: Magnetic Neutral Axis.