Question

For the circuit given below, the value of the Inverse hybrid parameter g21 is ___________ (a) 0.6 Ω (b) 0.5 Ω (c) 0.3 Ω (d) 0.2 Ω The question was posed to me in unit test. This question is from Inverse Hybrid (g) Parameter topic in portion Two-Port Networks 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

Correct answer is (b) 0.5 Ω The best explanation: Inverse Hybrid parameter g21 is given by, g21 = \frac{V_2}{V_1} , when I2 = 0. Therefore short circuiting the terminal Y-Y’, and applying Kirchhoff’s law, we get, V1 = I1 (10 + 10) V2 = I1 10 ∴ \frac{V_2}{V_1} = \frac{I_1 10}{I_1 20} = 0.5 Hence g21 = 0.5 Ω.