Calculating Node Voltage using Nodal Analysis

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The discussion revolves around calculating the node voltage V1 using nodal analysis for a circuit driven by a voltage source Vs(t)= 8.2 cos(1.8 t − 0.25)V. The circuit elements include conductances G1, G2, and G3, along with an inductor and capacitor. The user has calculated resistance values but struggles with applying Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL) effectively. Clarification is sought regarding the component connected between nodes 1 and 4, which is identified as the voltage source. The conversation emphasizes the importance of understanding the relationship between the nodes to determine the potential difference.
TheBigDig
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1. Homework Statement
The circuit is driven by a voltage source,
Vs(t)= 8.2 cos(1.8 t − 0.25 )V .

The circuit elements are given as follows.
G1= 5 S,G2= 7.6 S,G3=3.8 S
(Gi is the conductance of corresponding resistor Ri)
L1= 20 H,C1= 5×10−2 F

If we select Node 4 as the reference node, find the node voltage of Node 1, V1.

2. Relevant equations
Σ Ik = 0

ΣVk = 0

3. The attempt at a solution
I've been able to find values for the resistance R1 = 0.2Ω , R2 = 0.132Ω and R3 = 0.263Ω but continuing on from their is a bit of a struggle. I'm unsure as to how I can apply KCL and KVL in a way that will enable me to find the voltage.

AC-steady-b.jpg


 
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Hi TheBigDig,

Please retain the formatting template headings when you construct your homework help request posts. This time I've re-inserted them for you and fixed the excessive use of bold font.

Regarding the problem, what component is directly connected between nodes 1 and 4?
 
gneill said:
Hi TheBigDig,

Please retain the formatting template headings when you construct your homework help request posts. This time I've re-inserted them for you and fixed the excessive use of bold font.

Regarding the problem, what component is directly connected between nodes 1 and 4?
The voltage source?
 
TheBigDig said:
The voltage source?
Yes. What can you conclude from that regarding the potential difference between nodes 1 and 4?
 
TheBigDig said:
If we select Node 4 as the reference node, find the node voltage of Node 1, V1.

Are you sure that's what the question asks?
 

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