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Published in Electrodynamics / Magnetostatics / Currents and Magnetic Fields
Tags: Biot-Savart's law / Taylor Expansion

Helmholtz coils are a devices that can provide a very homogeneous magnetic field. Let's find an approximation for their magnetic field!

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Published in Electrodynamics / Electrostatics / Multipole Moments
Tags: Superposition Principle / Dipole / Taylor Expansion

In a limiting procedure, the field of a dipole is calculated. Taylor expansion of 1/r is used.

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