Problem 17
Use the node-voltage method to determine the Norton
equivalent circuit when $R_5$ is taken as the load and
$V_{s1} = 8 \text{ V}$, $V_{s2} = 1 \text{ V}$, $I_s = 1 \text{ A}$, $R_1 = R_2 = 1 \Omega$, $R_3 = R_4$
$= R_6 = 3 \Omega$, $R_5 = 2 \Omega$. Determine the current and power
associated with $R_5$ in the equivalent circuit.
Problem 18
Referring to Problem 17, use the mesh-current method to directly determine (without undergoing any load-
source reduction or transformation) the Norton equivalent current when $R_5$ is taken as the load and $V_{s1} = 8 \text{ V}$,
$V_{s2} = 1 \text{ V}$, $I_s = 1 \text{ A}$, $R_1 = R_2 = 1 \Omega$, $R_3 = R_4 = R_6 = 3 \Omega$, $R_5 = 2 \Omega$.
