A. A = D
B. A = 2 D
C. A = 3 D
D. A = 4 D
I got this question in an international level competition.
My enquiry is from Image Parameters topic in portion Two-Port Networks of Network Theory
Best explanation: We know V1=AV2-BI2 and I1=CV2-DI2. If the network is symmetrical, then the relation between A and D is A = D.