Which device is used to transmit voltage over large distances and why?
(N/A) transformer is used to transmit voltage over large distances.
It is used because it can step up the voltage to a very high level for transmission,which significantly reduces the current flowing through the transmission lines.
Since power loss due to heating is given by $P_{loss} = I^2 R$,reducing the current $I$ minimizes energy loss during transmission over long distances.
It is used because it can step up the voltage to a very high level for transmission,which significantly reduces the current flowing through the transmission lines.
Since power loss due to heating is given by $P_{loss} = I^2 R$,reducing the current $I$ minimizes energy loss during transmission over long distances.
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