Question

Find the voltage across 2Ω resistor due to 20V source in the circuit shown below. (a) 1 (b) 1.5 (c) 2 (d) 2.5 This question was posed to me in an online quiz. My question is taken from Superposition Theorem topic in portion Useful Theorems in Circuit Analysis of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

Answer 1

Right option is (b) 1.5 The explanation: The voltage at node A in the figure is (V-20)/20+(V-10)/10+V/2=0 => V=3.07V. Now short circuiting 10V source, (V-20)/20+V/2+V/10=0 => V=1.5V.