你知道電池的負極是接地的,你怎樣判斷地線和正負的?
你要量量各極與地線的電阻
所有跟帖:
• 正對負有電壓,地對負極0電阻,地對其它電阻無窮大 -ddy- ♂ (0 bytes) () 03/16/2019 postreply 10:58:19
• Your best bet is to look at the wiring at the pump -MoonRiverMe- ♂ (29 bytes) () 03/16/2019 postreply 11:39:33
• 正對負有電壓,地對負極0電阻,地對其它電阻無窮大 -ddy- ♂ (0 bytes) () 03/16/2019 postreply 10:58:19
• Your best bet is to look at the wiring at the pump -MoonRiverMe- ♂ (29 bytes) () 03/16/2019 postreply 11:39:33
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