[請問] 開關容許幾A的疑問?
我買了一個開關~
上面印
15A 125V AC
10A 250V AC
根據V=IA
電壓愈高~電流愈低~
但我想不通的是~
它既然可以在125V下承受15A~
為什麼就不能在250V下承受15A?(瓦數比較高的電器)
A的定義不都一樣嗎?
謝謝
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