1.

For the circuit given below, the value of the hybrid parameter h12 is ___________(a) 6 Ω(b) 5 Ω(c) 1 Ω(d) 2 ΩI had been asked this question in an online interview.Query is from Hybrid (h) Parameter topic in section Two-Port Networks of Network Theory

Answer»

The correct choice is (c) 1 Ω

For EXPLANATION: HYBRID parameter H12 is given by, h12 = \(\frac{V_1}{V_2}\), when I1 = 0.

Therefore short circuiting the terminal X-X’ we get,

V1 = IA × 5

V2 = IA × 5

From the above equations, we get,

∴ \(\frac{V_1}{V_2} = \frac{I_A×10}{I_A×10}\) = 1

Hence h12 = 1 Ω.



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