Circuit Analysis Tutor, Volume 2
Lesson 5 – Node Voltage Problems: Part 4 

In this lesson, we continue to solve circuits using the Node Voltage
method of circuit analysis.  Here we take care to show each and every
step in the solution process so that the student gains practice and
confidence with this method.

In this problem, we have a voltage source and two current sources in
the circuit and we are asked to calculate the total power dissipated by
the resistor network using the node voltage method.