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Originally posted by albie at 2006-3-28 14:04:
其實你係唔係搞錯左earthing 同earth wire,
呢個係electric circuit,係冇所為ge earth wire
而earthing亦都係for electrostatic,
其實earht ge resistance係幾大下ga,
如果一舊電池駁左去地,
由於R ...
我睇番條題目... 佢應該指 earthing...
電路中間o個度駁住個咁o既符號:
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好似越講越遠添...番番去個問題
即係假如咁樣接地...仍有電流由A 向 B...電壓亦無影響,
電流不會流到地球, 因為短路, 同條地線無return path?
[ Last edited by 博士.Dota on 2006-3-28 at 06:08 PM ] |
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