In the transmission of a.c power throw transmission liner, when the voltage is stepped up $n$ times,

Question

In the transmission of a.c power throw transmission liner, when the voltage is stepped up $n$ times, the power loss is transmission\

Professor PC Thomas Classes · Answer

$\mathrm{I}_{\mathrm{rms}}=$ current (rms) on the line\ $=\frac{	ext { Power demand }}{	ext { rmsvoltage }}$\ If $R$ is the resistance of the supply lines, power loss $=\mathrm{I}_{\mathrm{rms}}^{2} \mathrm{R}$. If from the power house, rms voltage is stepped up $n$ times, current decreases n times, the power loss is reduced $\mathrm{n}^{2}$ times.\