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L'électromagnétisme

science et technologie 2013

QuestionAnswer
Les forces d'attraction et de répultion Ils sont des forces magnétiques qui attrirent ou qui repoussent certains matériaux à distance.
Les forces magnétiques Ils agissent sur certaines substances alors qu'elles n'ont aucun effet sur d'autre.
Quels sont les deux sortes de force magnétique? Les forces d'attraction et de répultion
Les substances magnétiques Elles sont constituer d'éléments ferromagnétiques.
Quels sont les principaux sortes d'éléments ferromagnétique? Le fer, le cobalt, le nickel, le gadilinium ou des alliages de ces métaux.
Les aimants Ils font partis de substances magnétiques qui possèdent un ferromagnétisme permanent.
Les substances non magnétiques Ils sont des matériaux comme le plastique ou la céramique. Elles ne contient pas d'éléments ferromagnétiques tels que le fer ou le nickel. Lorsqu'elles sont placée à proximité d'un aimant,ils ne subissent aucun effet
Created by: vian1511
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