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Determine the transmission parameter D in the circuit shown below.

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in Network Theory by (157k points)
Determine the transmission parameter D in the circuit shown below.

(a) 3/5

(b) 4/5

(c) 7/5

(d) 2/5

This question was posed to me during an interview.

My question comes from Image Parameters topic in portion Two-Port Networks of Network Theory

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Correct answer is (c) 7/5

For explanation I would say: The transmission parameter D is -I1/I2 |V2=0. This is obtained by short circuiting the port 2. We get I1 = (7/17)V1 and -I2 = (5/17)V1. On solving, we get -I1/I2 = 7/5. On substituting we get D = 7/5.

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