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Find the voltage at node 1 of the circuit shown below.(a) 32.7(b) 33.7(c) 34.7(d) 35.7This question was posed to me in final exam.The question is from Nodal Analysis topic in portion Methods of Analyzing Circuits of Network Theory

Answer»

Right choice is (b) 33.7

For EXPLANATION: APPLYING Kirchhoff’s current LAW at node 1, 10 = V1/10+(V1-V2)/3. At node 2, (V2-V1)/3+V2/5+(V2-10)/1=0. On SOLVING the above equations, we get V1=33.7V.



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