Consider following given statements about Tellegen’s theorem and choose which is / are correct.
I. It is used in developing the sensitivity coefficients of a network from the concept of adjoint network.
II. It is applicable to any lumped network.
III. It is applicable to all electrical networks which obey Kirchhoff’s laws.1
Only I
2
Both I and II
3
All, I, II, III
4
Both II and III