Equatorial magnetic field of short bar magnet (B_eq = (μ₀/4π)(m/r³))
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B_eq = (μ₀/4π)(m/r³)
What each symbol means
| Symbol | What it stands for |
|---|---|
| m | Magnetic dipole moment (A·m²) |
| r | Distance from dipole center on equatorial line (m) |
When to use this
Short dipole; field on perpendicular bisector.