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A two port network is not reciprocal if
- a)BC - AD = -1
- b)g12+g21 = 0
- c)Z12= Z21
- d)h12 + h21 = 1
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
A two port network is not reciprocal ifa)BC - AD = -1b)g12+g21 = 0c)Z1...
Explanation:
Reciprocity is a property of a two-port network in which the transmission from port 1 to port 2 is the same as the transmission from port 2 to port 1.
Mathematically, if a two-port network is reciprocal, then:
h12 = h21
Where h12 is the forward transmission parameter and h21 is the reverse transmission parameter.
Option D states that h12 h21 = 1, which implies that the product of the forward and reverse transmission parameters is equal to 1. This condition is necessary for a two-port network to be reciprocal.
The other options are:
Option A: BC - AD = -1 is the condition for a two-port network to be lossless.
Option B: g12 g21 = 0 is the condition for a two-port network to be either a matched network or an isolated network.
Option C: Z12= Z21 is the condition for a two-port network to be symmetrical.
None of the above conditions are sufficient to determine whether a two-port network is reciprocal or not.
Therefore, option D is the correct answer.
Reciprocity is a property of a two-port network in which the transmission from port 1 to port 2 is the same as the transmission from port 2 to port 1.
Mathematically, if a two-port network is reciprocal, then:
h12 = h21
Where h12 is the forward transmission parameter and h21 is the reverse transmission parameter.
Option D states that h12 h21 = 1, which implies that the product of the forward and reverse transmission parameters is equal to 1. This condition is necessary for a two-port network to be reciprocal.
The other options are:
Option A: BC - AD = -1 is the condition for a two-port network to be lossless.
Option B: g12 g21 = 0 is the condition for a two-port network to be either a matched network or an isolated network.
Option C: Z12= Z21 is the condition for a two-port network to be symmetrical.
None of the above conditions are sufficient to determine whether a two-port network is reciprocal or not.
Therefore, option D is the correct answer.
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