Nodal Analysis Help, 1 equation 2 unknowns

[eatsleep]

1.

2. V=IR, Nodal analysis



3. Based on where I have drawn my ground, V2=-10V, V1=3I. From this I should just have 1 equation with 1 unknown (if I have done this correct). My KCL equation for node V1 is (V3+10)/8 + (V3-3I)/2 + V3/12. I am stuck, I need to find an equation for I in terms of V3.

 

[gneill]

If you assume the potential at v3 is, well, v3, then what's the current through the 12Ω resistor?

 

[eatsleep]

If you assume the potential at v3 is, well, v3, then what's the current through the 12Ω resistor?

Oh wow, I=V3/12

 

[gneill]

Oh wow, I=V3/12

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