What happens to the armature diameter and the volume of air gap and magnet when the angle is lower in value?(a) volume of air gap and magnet increases, armature diameter increases(b) volume of air gap and magnet increases, armature diameter decreases(c) volume of air gap and magnet decreases, armature diameter decreases(d) volume of air gap and magnet decreases, armature diameter increasesThe question was asked in quiz.My query is from Design Steps and Considerations in section Design of Permanent Magnet (PM) DC Motors of Design of Electrical Machines

What happens to the armature diameter and the volume of air gap and ma

1.	What happens to the armature diameter and the volume of air gap and magnet when the angle is lower in value?(a) volume of air gap and magnet increases, armature diameter increases(b) volume of air gap and magnet increases, armature diameter decreases(c) volume of air gap and magnet decreases, armature diameter decreases(d) volume of air gap and magnet decreases, armature diameter increasesThe question was asked in quiz.My query is from Design Steps and Considerations in section Design of Permanent Magnet (PM) DC Motors of Design of Electrical Machines
Answer» Correct choice is (d) volume of air gap and magnet DECREASES, armature DIAMETER increases To explain I WOULD say: The lower values of angle, reduces the volume of air gap and magnet. The reduction of volume of air gap and magnet, increases the armature diameter.

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