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Network Elements and the Concept of Circuit

Easy Questions

Network Theory

Network Elements and the Concept of Circuit
Network theory miscellaneous
  1. H (s) =
    V(s)
    		 =
    (s + 3)
    		, i(t) in a unit step. V (t) in the steady state is given by—
    I(s)(s + 2)2
    1. 3
      2
    2. 3
      4
    3. 1
    4. 0
Correct Option: B

Given

H(S) =
V(S)
 =
(S + 3)
(2 + 1)(S + 2)2

and
I (t) = u (t)
I(s) =
1
 ; V(s) = H(s) I(s)
s

=
(s + 3)
1
(s + 2)2s

V(t) = s→0lim sV(s) = s→0lim s.
1
(s + 3)
s(s + 2)2

= 3/4


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