Chapter 8, Problem 3PP

Find the unknown values in the circuit if the applied voltage is 18 V and the resistors have the following values:

$\begin{array}{l}{\text{R}}_1=82\Omega {\text{ R}}_2=160\Omega {\text{ R}}_3=220\Omega {\text{ R}}_4=470\Omega \\ {\text{I}}_{\text{T}}\_\_\_\_\_{\text{ E}}_1\_\_\_\_\_{\text{ E}}_{\text{2}}\_\_\_\_\_{\text{ E}}_{\text{3}}\_\_\_\_\_{\text{ E}}_{\text{4}}\_\_\_\_\_\\ {\text{R}}_{\text{T}}\_\_\_\_\_{\text{ I}}_{\text{1}}\_\_\_\_\_{\text{ I}}_{\text{2}}\_\_\_\_\_{\text{ I}}_3\_\_\_\_\_{\text{ I}}_{\text{4}}\_\_\_\_\_\end{array}$

FIGURE 8-21 Series-parallel circuit.