dejected
发表于 2025-3-21 18:51:28
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chapel
发表于 2025-3-21 21:23:45
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喷出
发表于 2025-3-22 02:01:16
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多余
发表于 2025-3-22 06:46:10
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harrow
发表于 2025-3-22 08:45:34
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Transfusion
发表于 2025-3-22 16:44:10
Chemical Effects,temperature. This is because the current is the result of an axial drift of electrons and as many electrons enter at one end as leave at the other. There are many liquids, mainly solutions of ionic compounds in which the passage of current is accompanied by a chemical change. Such liquids are called
注视
发表于 2025-3-22 17:52:10
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迅速飞过
发表于 2025-3-22 21:44:35
The Transformer,very high voltages are required; for distribution, much lower voltage; and for utilisation, say in the home, voltages of the order of 240 V. The transformer is essentially a ‘close-coupled’ mutual inductor, this meaning that almost of the whole of the flux set up by the primary m m f. links with the
GEST
发表于 2025-3-23 05:00:40
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打谷工具
发表于 2025-3-23 06:44:04
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