The 100kV being the source was the conclusion I came to as well.
Thanks, lendav_rott, I think I may be getting where I'm going. I think I can find the current by reducing to a quadratic equation by saying that:
V = I(Rw + Rf)
=> V = I(Rw + Pf/I2)
=> RwI2 - VI + Pf = 0
And just...
Homework Statement
A factory receives 120kW of power from a power station 20km away via transmission lines. If the resistance in the power lines is 0.5Ω/km, what is the power loss in the lines if the electricity is transmitted at 100kV (Approximate to a simple DC circuit).
Homework Equations
V...