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Consider the figure shown below. Find the voltage (V) at node 2.(a) 3(b) 4(c) 5(d) 6I got this question in unit test.My question is from Supernode Analysis topic in division Methods of Analyzing Circuits of Network Theory

Answer»

The CORRECT answer is (b) 4

The explanation: Applying Super Node Analysis, the combined equation of node 1 and node 2 is (V1-V3)/3+3+(V2-V3)/1-6+V2/5=0. At node 3, (V3-V1)/3+(V3-V2)/1+V3/2=0. AlsoV1-V2=10. On solving above EQUATIONS, we GET V2 = 3.72V ≈ 4V.



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