If a two-port network is represented with h-parameters, then the condition for reciprocity is _____.

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  1. h11 = h22
  2. h12 = -h21
  3. h12 = h21
  4. h11 = -h22

Answer (Detailed Solution Below)

Option 2 : h12 = -h21
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Detailed Solution

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Explanation:

The h-parameters represent a two-port network with the following equations:

V1 = h11 * I1 + h12 * V2 I2 = h21 * I1 + h22 * V2

where:

  • V1 is the input voltage
  • I1 is the input current
  • V2 is the output voltage
  • I2 is the output current
  • h11, h12, h21, and h22 are the h-parameters

The condition for reciprocity in a two-port network represented by h-parameters is:

h12 = -h21

Therefore, the correct answer is h12 = -h21.

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