# Problem 1-11: Solving a Circuit with Three Nodes by the Nodal Analysis

Solve the circuit by nodal analysis and find the power of $Is_1$.

Solution
a) Choose a reference node, label node voltages:

b) Apply KCL to each node:
$V_1$ can be found by the voltage source: $V_1 = Vs_1 = 10v$.
KCL @ node 2:

$Is_1 + \frac{V_2}{R_2}+\frac{V_2-V_1} {R_4}=0$
$V_2=9.6 v$

c) Find the required value:
$P_{Is_1} = Is_1 \times V_2 = - 19.2 W$, supplying.

## 7 thoughts on “Problem 1-11: Solving a Circuit with Three Nodes by the Nodal Analysis”

1. I need more number of problems regarding to nodal ananlysis

1. There are some other solved problems about nodal analysis. Search or click on the tag.

2. ignetius says:

3. plz tell me about the node and i m confused how much nodes can be made
[img]334[/img]

4. plz tel me about the node and i m confused about the nodals number in the above image

5. Faraz says:

why aren't the resistors R1 and R3 contributing in this nodal analysis?

6. Opeyemi says: