Electric companies are tasked with transferring power
produced at generation sites over long distances to people's homes.
Which of the following statements is a good characterization
of the reasoning behind their choice of transmission model?
A) They transfer power at high current, which
reduces the amount of resistance in the power lines. This
further reduces power loss within the power lines, which scales
as R.
B)They transfer power at high voltage, which reduces the
amount of resistance in the power lines. This further reduces power
loss within the power lines, which scales as R.
C) They transfer power at high voltage and low current.
This reduces power loss within the power lines, which
scales as I2.
D) They transfer power at high current and low
voltage. This reduces power loss within the power
lines, which scales as I2.
