长期以来人们对电和磁的认识,总认为它们具有相似性。电荷有正电荷和负电荷,磁铁则有N极和S极;磁极未能发现它们可以单独存在,而正负电荷却是可以单独存在的。但构成电荷有没有基元电荷呢?这是人们长期以来颇费思索的问题。电子与正电子很早以前,人们就利用摩擦起电获得正电荷和负电荷。但是对于电荷 People have long been aware of electricity and magnetism, and they think that they have similarities. The charge has positive and negative charges. The magnet has N and S poles; the magnetic pole cannot find that they can exist alone, but the positive and negative charges can exist alone. But is there a basis charge for the constituent charge? This is a question that people have long pondered. Electronics and positrons People used frictional electrification to obtain positive and negative charges long ago. But for the charge