Q$1/$ A $400$ equal wire$-$wound resistors each of about $2\mathrm{.}5M$ have serially connected; the resistors are aged by a temperature treatment. They form a helix of $80$ windings as shown in Figure below. Consider the above specifications then calculated the current passing through the series resistors, and power dissipation at each winding resistors and at each resistor if $500$ kV has dropped across the mentioned total wire$-$wound resistors.

$500$ kV for d$.$c$.$ voltage divider