1. Example 4.2 Using the Node-Voltage Method Use the node-voltage method of circuit analysis to find the branch currents in the circuit shown

2. Determine the number of essential nodes There are two essential nodes. Thus there will be one node-voltage equation. Identify the nodes as “ground” and “1”.

3. Write the node-voltage equation and solve for v 1. Identify the currents “out of the node(s)”

4. Solve for the branch currents +40V

5. Find the power associated with each source, and state whether the source is delivering power or absorbing power.