13. Which of the following kind of network has the same admittance and impedance properties?
(a) L–C type (b) R–L type (c) R–C type (d) R–L–C type
14. Both odd and even parts of a Hurwitz polynomial P(s) have roots
(a) in the right-half of s-plane
(b) in the left-half of s-plane
(c) on the σ-axis only
(d) on the j
w-axis only
15. The impedance of a network is given as
Zs
ss
ss
()
()
()
()
.
=
+
++
2
34
The function is
(a) not a PRF
(b) R–L network
(c) R–C network
(d) L–C network
16. If F
1
(s) and F
2
(s) are positive real, then which of the following are positive real?
(a)
11
12
Fs
Fs
()
()
and (b)
Fs
Fs
12
()
()+
(c)
FsFs
Fs
Fs
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