Suppose a power plant produces 800 kW of power and is to send that power for many miles over a copper wire with a total resistance of 12 Ω. 

(a) If the power is sent across the copper wires at 48 kV rms, how much current flows through the wires? 

(b) What is the power dissipated due to the resistance of the wires at this current? What percent of the total power output of the plant is this?

(c) Although a series of transformers step the voltage down to the 120 V used for household voltage, assume you are using a single transformer to do the job. If the single transformer has 10 000 primary turns, how many secondary turns should it have?