A network is said to be symmetrical if the relation between A

a-network-is-said-to-be-symmetrical-if-the-relation-between-a

A network is said to be symmetrical if the relation between A and D is?

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

Correct option is A. A = D

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.