For a power transmission line, the transmission should be at low current and high voltage because:
A)this is the least dangerous to electrical workers
B)this gives the least dose of electromagnetic radiation to the public
C)this minimizes transmission losses
D)low current and high voltage is easier to transform than high current and low voltage
E)household appliances run at low current and high voltage

Question

Quizplus · Accepted Answer

Transmission losses are proportional to current squared (I^2R), so minimizing current will minimize losses. High voltage is used to minimize losses due to impedance of the transmission line. The other options are not directly related to the choice of low current and high voltage transmission.

For a Power Transmission Line, the Transmission Should Be at Low