[問題] 電路學的互感之dot判斷...
要怎麼判斷
互感後所產生電壓的正負號阿??
一直看不太懂耶
極性相同的時候
極性不同的時候
課本寫的
If a current enters(leaves) the dotted terminal of one coil,the reference
polarity of the mutual voltage in the second coil is positive(negative)~~~~
什麼叫做電流進入或離開dot阿..
真的看不太懂
有沒有簡單一點的判斷方法呢?
謝謝
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