...The force (magnetic force) acting between magnetic poles is given by Coulomb's law, and the unit of magnetic charge (magnetic quantity) is determined from the magnitude of this magnetic force, which is the Weber (Wb) in the SI unit system. There are north poles (positive poles) and south poles (negative poles), and like poles repel each other, while unlike poles attract each other. When made into a magnetic needle, the side that points north is the north pole. ... *Some of the terminology that refers to the "South Pole" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…磁極と磁極の間に働く力(磁気力)はクーロンの法則によって与えられるが,この磁気力の大きさから磁荷(磁気量)の単位が定まり,SI単位系ではウェーバーWbである。磁極にはN極(+極)とS極(-極)とがあり,同種の極どうしは反発し,異種の極どうしは引き合う。磁針にしたとき,北を指すほうにあるのがN極である。… ※「S 極」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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