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by dreamcompiler
1212 days ago
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AC is never more efficient than DC. AC was easier to step up and down than DC 120 years ago. That's the only reason we use it*, despite worse efficiency. * Motors are the other reason. Big electric motors in 1900 ran better on sinusoidal AC than DC. We have much better motor technology today, plus power semiconductors to control them. So motors are no longer a reason for the grid to be AC. |
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