What is the range of the permissible values of the flux densities in pole body?(a) 1.4-1.7 Wb per m^2(b) 1.5-1.7 Wb per m^2(c) 1.4-1.6 Wb per m^2(d) 1.5-1.6 Wb per m^2This question was addressed to me at a job interview.I would like to ask this question from Design of Rotor topic in chapter Design of Synchronous Machines of Design of Electrical Machines

What is the range of the permissible values of the flux densities in p

1.	What is the range of the permissible values of the flux densities in pole body?(a) 1.4-1.7 Wb per m^2(b) 1.5-1.7 Wb per m^2(c) 1.4-1.6 Wb per m^2(d) 1.5-1.6 Wb per m^2This question was addressed to me at a job interview.I would like to ask this question from Design of Rotor topic in chapter Design of Synchronous Machines of Design of Electrical Machines
Answer» Right answer is (b) 1.5-1.7 WB per m^2 To explain: The MINIMUM value of the flux DENSITY in the POLE body is GIVEN to be 1.5 Wb per m^2.The maximum permissible value of the flux density in the pole body is given to be 1.7 Wb per m^2.

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