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Consider the figure shown below. Find the voltage (V) at node 1.(a) 13(b) 14(c) 15(d) 16I had been asked this question by my college professor while I was bunking the class.This interesting question is from Supernode Analysis topic in division Methods of Analyzing Circuits of Network Theory

Answer»

Right option is (b) 14

For explanation I would SAY: 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 V1 = 13.72V ≈ 14V.


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