Problems And Solutions Pdf - Magnetic Circuits

A magnetic circuit has a coil of 500 turns, a core with a cross-sectional area of 0.05 m², and a length of 1 m. If the current through the coil is 10 A and the magnetic flux is 0.5 Wb, find the relative permeability of the core.

Φ = MMF / S = 1600 / 5969 = 0.268 Wb

The magnetomotive force (MMF) is given by: magnetic circuits problems and solutions pdf

S_air = lg / (μ₀ * A) = 0.0005 / (4π x 10^(-7) x 0.02) = 1989 A/Wb A magnetic circuit has a coil of 500

The reluctance of the magnetic circuit is given by: magnetic circuits problems and solutions pdf

The reluctance is also given by: