Magnetic Circuits Problems And Solutions Pdf Apr 2026
A magnetic circuit consists of a coil of 200 turns, a core with a cross-sectional area of 0.02 m², and a length of 0.8 m. The air gap length is 0.5 mm. If the current through the coil is 8 A, find the magnetic flux.
MMF = NI = 200 x 8 = 1600 A-turns
where S_core is the reluctance of the core and S_air is the reluctance of the air gap. magnetic circuits problems and solutions pdf
Here are some common problems and solutions related to magnetic circuits: A magnetic circuit consists of a coil of
where μ₀ is the permeability of free space and μr is the relative permeability of the core. magnetic circuits problems and solutions pdf
S_air = lg / (μ₀ * A) = 0.0005 / (4π x 10^(-7) x 0.02) = 1989 A/Wb