A toroid is constructed of a magnetic material having a cross sectional area of 2 5 cm 2 and an effective length of 8 cm There is also a short air gap of 0 25 mm length and an effective area of 2 8 cm 2 An mmf of 200 A t is applied to the magnetic circuit Calculate the total flux in the toroid if the magnetic material (a) Is assumed to have infinite permeability (b) Is assumed to be linear with r 1000 (c) Is silicon steel

Question: A toroid is constructed of a magnetic material having a cross-sectional area of 2.5 cm 2 and an effective length of 8 cm. There is

A toroid is constructed of a magnetic material having a cross-sectional area of 2.5 cm² and an effective length of 8 cm. There is also a short air gap of 0.25 mm length and an effective area of 2.8 cm². An mmf of 200 A· t is applied to the magnetic circuit. Calculate the total flux in the toroid if the magnetic material:

(a) Is assumed to have infinite permeability;

(b) Is assumed to be linear with μ_r = 1000;

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