Repeat Problem 1.11 for a 1.0 cm wide air gap in the core. Assume a 10% increase in the effective cross sectional area of the air gap due to fringing in the air gap.
The magnetic circuit of Fig. P1.11 has a core of relative permeability uT = 2000. The depth of the core is 5 cm. The coil has 400 turns and carries a current of 1.5 A.
(a) Draw the magnetic equivalent circuit.
(b) Find the flux and the flux density in the core.
(c) Determine the inductance of the coil.
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