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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. The Laplace transform of (t 2 – 2t) u (t – 1) is—


    1. =
      2
      		 e–s –
      2
      		e– s
      s3s2


    2. =
      2
      		 e–s +
      2
      		e– s
      s3s2


    3. =
      2
      		 e–2s -
      1
      		e– s
      s3s
    4. None of these
Correct Option: D

(t 2 – 2 t) u (t – 1) can be written as in the form
= (t – 1)2 u (t – 1) – u (t – 1) taking Laplace transform



=
2
 e–s –
e–s
s3s


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