In order to find the current, we can use the formula below for the electric power:
[tex]P=I\cdot V[/tex]Where I is the current (in A) and V is the voltage (in V).
So, using P = 1.5 * 10^9 W and V = 4 * 10^5 V, we have:
[tex]\begin{gathered} 1.5\cdot10^9=I\cdot4\cdot10^5\\ \\ I=\frac{1.5\cdot10^9}{4\cdot10^5}\\ \\ I=0.375\cdot10^4\\ \\ I=3.75\cdot10^3\text{ A} \end{gathered}[/tex]Therefore the current is 3.75 * 10^3 A or 3.75 kA.
