[問題] 示波器
示波器在未勾待測物時,
當scale縮小時,會看到電壓值都在0v以下,這是為什麼呢?
另外,為什麼待測物上電, 鱷魚夾夾gnd, 示波器才會顯示0v
當待測試沒上電,他會偏0v以下.....而不是0v呢?
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※ 編輯: BlueFeel 來自: 123.195.194.110 (03/13 00:31)
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