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Can we transmit electricity at various frequency in the same wire simultaneously?

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September 07, 2007 8:17PM

Internet broadband is probably the best useful example of this. We can also send radio signals between devices plugged into sockets on the same circuit in our houses, with the signal sent through the mains wiring.

To transmit electricity for energy use at different frequencies is neither practical or efficient. To handle electricity on the scale of the super grid that serves us, frequencies and voltages need to be harmonized. An example of this is a wind turbine, which converts its varying a.c. supply to d.c. then back to a.c. at the correct frequency to be useful to the system it is connected to.