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19 July, 00:39

Explain why ultra-high voltages are

used to carry electricity over transmission lines.

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  1. 19 July, 01:03
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    Well, let's take it the other way. If you have a rather low voltage (220 volts - - Europe - - is low) you'd get a high current, which more easily dissipates as heat, resulting in loss of energy. Using a high voltage you have a low current which could easily be transported with almost no loss.
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