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Find the voltage (V) at node 1 in the circuit shown below.(a) 18(b) 19(c) 20(d) 21I have been asked this question during an online exam.This interesting question is from Supernode Analysis topic in division Methods of Analyzing Circuits of Network Theory

Answer»

The CORRECT option is (b) 19

To elaborate: The equation at node 1 is 10 = V1/3+(V1-V2)/2. According to SUPER Node analysis, (V1-V2)/2=V2/1+(V3-10)/5+V3/2V2-V3=20. On solving, we GET, V1=19V.



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