Greetings to all, I a\'m doing a lab on my Circuits I class that is to be solved
ID: 1829494 • Letter: G
Question
Greetings to all, I a'm doing a lab on my Circuits I class that is to be solvedwith Nodal Analysis. So what I need to get is VA and VB, and with those voltagesget my i1, i2, and i3. The problem that I am having is getting the correct formulasfor VA and VB with the nodal analysis method. The formulas that i get for VA and VB are thefollowing.. VA (VA-4.5V)/3K = VA/6K + (VB-VA/2K) (VB-VA)/2K + 3mA = (VB-11V)/1K And the values that I get for VA and VB are different from thevalues that PSpice gives me. can anyone help me with my equations??Explanation / Answer
You have a couple of sign errors
VA:
((4.5-VA)/3k) – VA/6k +((VB-VA)/2k) = 0
VB:
((VA-VB)/2k) + 3mA + ((11-VB)/1k) = 0
Solve one of the eqs for either VA or VB and plug it into theother eq.
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