Magnetic dipoles and electric currents

TL;DR

This paper explores the similarities and differences between electric and magnetic dipoles, analyzing their fields and the relation to current loops, providing accessible insights into classical electromagnetism for undergraduates.

Contribution

It clarifies the connection between magnetic dipoles and current loops, demonstrating their field equivalence in the pointlike limit, with an accessible explanation for students.

Findings

Magnetic dipoles and current loops have coinciding fields in the pointlike limit.

The paper highlights key differences and similarities between electric and magnetic dipoles.

Accessible explanation suitable for undergraduate electromagnetism courses.

Abstract

We discuss several similarities and differences between the concepts of electric and magnetic dipoles. We then consider the relation between the magnetic dipole and a current loop and show that in the limit of a pointlike circuit, their magnetic fields coincide. The presentation is accessible to undergraduate students with a knowledge of the basic ideas of classical electromagnetism.