反磁性物質/Diamagnetism materials скачать в хорошем качестве

反磁性物質/Diamagnetism materials

This video is about 反磁性物質/Diamagnetism materials 抗磁性 熱解炭具有任何室溫材料中最大的抗磁常數之一 Pyrolytic carbon has one of the largest diamagnetic constants of any room temperature material. 熱解炭片因釹磁鐵的強磁場排斥而懸浮 Here a pyrolytic carbon sheet is levitated by its repulsion from the strong magnetic field of neodymium magnets. 反磁性物質會被磁場排斥 Diamagnetic materials are repelled by a magnetic field 施加的磁場會在相反的方向上產生感應磁場 an applied magnetic field creates an induced magnetic field in them in the opposite direction 抗磁性材料是人們通常認為的非磁性材料 Diamagnetic materials are those that some people generally think of as non-magnetic 包括水,木材,大多數有機化合物及許多金屬(包括銅) include water, wood, most organic compounds and many metals including copper 但是,由於抗磁性很弱,因此在日常生活中不易觀察 However, since diamagnetism is such a weak property its effects are not easy to observe in everyday life 筆芯主要的材料是石墨 The main material of the refill is graphite 所以反磁性效果也很明顯 So the diamagnetic effect is also very obvious