$\begin{align}  & {{R}_{2}}=4\times 30=120\Omega  \\  & {{V}_{1}}={{R}_{1}}{{I}_{1}}\Rightarrow {{V}_{1}}=30\times 8=240V \\  & {{V}_{2}}={{V}_{1}}={{R}_{2}}{{I}_{2}}\Rightarrow 240=120{{I}_{2}}\Rightarrow {{I}_{2}}=2A \\ \end{align}$