Consider the following statements regarding T and π models of medium transmission lines
1. Nominal T model is an unsymmetrical reciprocal network.
2. For Nominal π model AD - BC = 1, where A, B, C, and D are transmission parameters.
3. In both Nominal-π and Nominal-T models \(A = 1+\frac{ZY}{2}\)
Which of the above statement(s) is /are correct?
1
1 and 3 only
2
2 and 3 only
3
1, 2 and 3
4
only 2