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Find the Y – parameter Y22 in the circuit shown below.

(a) 3/8

(b) 5/8

(c) 7/8

(d) 9/8

I got this question in an interview for internship.

My question is based upon Short Circuit Admittance(Y) Parameters topic in chapter Two-Port Networks of Network Theory

Select the correct answer from above options

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The correct option is (b) 5/8

To elaborate: On short circuiting a-a’, we get Zeq = 8/5 Ω. V2=I2× 8/5. We know Y22 = I2/V2. We got I2/V1 = 5/8. ON substituting we get Y22 = 5/8 mho.

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