70 and 72

Dear Student,
                       72,
                        $$\begin{gathered} Here power factor\left(\cos \right(\phi \left)\right)=\frac{R}{Z}=\frac{3000}{\sqrt{{3000}^2+{\left({\displaystyle \frac{{10}^6}{2\times 50\times 2.5}}\right)}^2}} \\ =0.6 \\ Power dissipated=Vi\cos \left(\phi \right)=\frac{V^2}{Z}\cos \left(\phi \right)=\frac{{\left(200\right)}^2}{5000}\times .6=4.8W \end{gathered}$$
Kindly post different question in different threads 
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