What is the permissible current density in the armature conductors?(a) 3-4 A per mm^2(b) 3-6 A per mm^2(c) 4-6 A per mm^2(d) 3-5 A per mm^2The question was posed to me during an interview for a job.My enquiry is from Armature Design in chapter Design of Synchronous Machines of Design of Electrical Machines

What is the permissible current density in the armature conductors?(a)

1.	What is the permissible current density in the armature conductors?(a) 3-4 A per mm^2(b) 3-6 A per mm^2(c) 4-6 A per mm^2(d) 3-5 A per mm^2The question was posed to me during an interview for a job.My enquiry is from Armature Design in chapter Design of Synchronous Machines of Design of Electrical Machines
Answer» The correct answer is (d) 3-5 A per mm^2 To EXPLAIN I would say: The minimum permissible value of the current DENSITY in the armature conductors is 3 A per mm^2. The maximum allowed value of the current density in the armature conductors is 6 A per mm^2.

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