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arXiv · 2407.18958

Magnetic field of a linear octupole

E. Arribas·I. Escobar·R. Ramirez-Vazquez·A. C. Marti·M. Monteiro·C. Stari·A. Belendez
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Abstract

We measure the magnetic field produced by a linear octupole formed by four magnets placed in such a way that both their magnetic moments and their quadrupole moments cancel each other. The magnetic field is measured with the magnetic sensor of a smartphone together with a suitable app, using the Android operating system. The main objective is to determine the dependence of the x-component of the magnetic field with distance and compare with the theoretical result that tells us that this dependence is a quintic decrease.

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E. Arribas, I. Escobar, R. Ramirez-Vazquez, A. C. Marti, M. Monteiro, C. Stari, A. Belendez. 2024-07-15. Magnetic field of a linear octupole. https://arxiv.org/abs/2407.18958

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