Chapter 8, Problem 6PP

Find the unknown values in the circuit if the total current is 1.2 A and the resistors have the following values:

$\begin{array}{l}{\text{R}}_1=75\Omega {\text{ R}}_2=47\Omega {\text{ R}}_3=220\Omega {\text{ R}}_4=160\Omega \\ {\text{E}}_{\text{T}}\_\_\_\_\_{\text{ E}}_1\_\_\_\_\_{\text{ E}}_{\text{2}}\_\_\_\_\_{\text{ E}}_{\text{3}}\_\_\_\_\_{\text{ E}}_{\text{4}}\_\_\_\_\_\\ {\text{R}}_{\text{T}}\_\_\_\_\_{\text{ I}}_{\text{1}}\_\_\_\_\_{\text{ I}}_{\text{2}}\_\_\_\_\_{\text{ I}}_3\_\_\_\_\_{\text{ I}}_{\text{4}}\_\_\_\_\_\end{array}$

FIGURE 8-25 A parallel-series circuit.