[問卦] 是先有磁再有電,還是先有電再有磁?消失
請教各位物理先進大大們,
小弟最近才剛接觸電磁學,
知道電與磁是互相共生,
電可產生磁,磁也可生電。
但是這個宇宙到底是先有電才有磁,
還是先有磁再有電?
這個問題困擾小弟好久,
有那位大大可以解答?
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