What factor does the permeance coefficient depend upon?(a) geometry of the magnet(b) geometry of the magnet, airgap, associated non-portions of the magnetic circuit(c) airgap(d) associated non-portions of the magnetic circuitI got this question by my college professor while I was bunking the class.My enquiry is from Design Preliminaries in portion Design of Permanent Magnet (PM) DC Motors of Design of Electrical Machines

What factor does the permeance coefficient depend upon?(a) geometry of

1.	What factor does the permeance coefficient depend upon?(a) geometry of the magnet(b) geometry of the magnet, airgap, associated non-portions of the magnetic circuit(c) airgap(d) associated non-portions of the magnetic circuitI got this question by my college professor while I was bunking the class.My enquiry is from Design Preliminaries in portion Design of Permanent Magnet (PM) DC Motors of Design of Electrical Machines
Answer» The correct answer is (b) GEOMETRY of the magnet, airgap, ASSOCIATED non-portions of the magnetic CIRCUIT The best explanation: The PERMEANCE coefficient depends upon the geometry of the magnet and the airgap. It also depends on the associated non-portions of the magnetic circuit.

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