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Electronics Reference

Magnetic Circuit

Magnetomotive Force

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 > Magnetomotive Force

Magnetic Flux

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Φ - Magnetic Flux (Weber)
mmf - Magnetomotive Force (Ampere-turns)
N - Number of turns of the coil (turns)
I - Electrical current flowing through the coil (Ampere)
ℜ - Reluctance (1/Henry)

 > Magnetic Flux

Magnetic Field Strength

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H - Magnetic Field Strength (Ampere-turn/meter)
l - Mean length of flux lines (meter)
mmf - Magnetomotive Force (Ampere-turn)

 > Magnetic Field Strength

Reluctance

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ℜ - Reluctance (1/Henry)
l - Mean length of the (meter)
μo - Permeability of free space = 4π X 10-7 (N/A2)
μr - Relative permeability of the core
A - Cross-sectional area of the magnetic path (m2)
v - Reluctivity

 > Reluctance

Reluctance in Series

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latex!encoded:base64,XFBoaV9cdGV4dHJte1R9PVxQaGlfMT1cUGhpXzI9XFBoaV8zPVxjZG90cyA9XFBoaV9cdGV4dHJte059
 > Reluctance in Series

Reluctance in Parallel

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 > Reluctance in Parallel

Energy Stored in a Magnetic Circuit

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 > Energy Stored in a Magnetic Circuit
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