In the circuit given below, the value of the hybrid parameter h11 is _________(a) 10 Ω(b) 7.5 Ω(c) 5 Ω(d) 2.5 ΩThe question was asked in class test.Origin of the question is Hybrid (h) Parameter topic in chapter Two-Port Networks of Network Theory

In the circuit given below, the value of the hybrid parameter h11 is _

1.	In the circuit given below, the value of the hybrid parameter h11 is _________(a) 10 Ω(b) 7.5 Ω(c) 5 Ω(d) 2.5 ΩThe question was asked in class test.Origin of the question is Hybrid (h) Parameter topic in chapter Two-Port Networks of Network Theory
Answer» Correct choice is (b) 7.5 Ω To explain I would say: HYBRID parameter h11 is given by, h11 = \(\frac{V_1}{I_1}\), when V2 = 0. Therefore short circuiting the terminal Y-Y’, we get, V1 = I1 ((5 \|\| 5) + 5) = I1 \(\LEFT(\left(\frac{5×5}{5+5}\right)+5\right)\) = 7.5I1 ∴ \(\frac{V_1}{I_1}\) = 7.5 Hence h11 = 7.5 Ω.

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