A large power plant generates electricity at $12\mathrm{.}0$ kV$.$ Its old transformer once converted the voltage to $325$ kV$.$ The secondary coil of this transformer is being replaced so that its output can be $760$ kV for more efficient cross$-$country transmission on upgraded transmission lines.Part $($b$)$What is the ratio of new current output to the old current output for the same power input to the transformer?Part $($c$)$If the upgraded transmission lines have the same resistance as the original ones, what is the ratio of new line power