Electromagnetism
摘要
International agreements dictate the use of the SI units for electromagnetism. Though the SI units are practical, they are not well suited for understanding electromagnetism. A system of units, where electric and magnetic fields have the same dimension and where the role of the speed of light is transparent, is preferable for understanding electromagnetism. Therefore, the cgs-Gauss units (or its rationalized version, the Heaviside units) is preferable even though it is out of fashion at present.