Hur snabbt färdas elektriciteten i elledningarna

Frågad av David. Sorterad i Teknik & Elektronik

Som rubriken lyder, hur snabbt färdas elektriciteten i elledningarna?

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Bästa svaret

The quick answer
Inside the wires, the "something" moves very, very slowly, almost as slowly as the minute hand on a clock. Electric current is like a flow of syrup. Even maple syrup moves too fast, so that's not a good analogy. Electric charges flow as slowly as a river of warm putty. And in AC circuits, it doesn't move forward at all, instead it sits in one place and vibrates. Energy can flow fast in an electric circuit because metals are already filled with this "putty." If you push on one end of a column of putty, the far end moves almost instantly. Energy flows fast, yet an electric current is a very slow flow.


(1) (0) - Svar av pg-robban för 13 minuter sedan

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