Ideal Filters

Discussion in 'Homework Help' started by tquiva, Dec 23, 2010.

  1. tquiva

    Thread Starter Member

    Oct 19, 2010
    176
    1
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    Is my answer correct?
     
  2. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    Looks OK, except you evaluated H(∞) at s=1. You should evaluate at s=jω, where ω=∞.
     
  3. tquiva

    Thread Starter Member

    Oct 19, 2010
    176
    1
    when I evaluate it for ∞, would I just plus in any number greater than 0 for s? was my answer correct?
     
  4. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    No, you can't substitute a finite number for ∞. Infinity is what it is. Infinite means not finite.
    Just remember that ∞ plus or minus any number is still ∞. Also remember that 1/∞=0. You answer of H(∞)≈0 is almost, but not quite correct. I'll let you come back and tell us what you did wrong.
     
  5. Georacer

    Moderator

    Nov 25, 2009
    5,142
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    A bit offtopic, but, why did you change your avatar, Ron? Is that you on the new one?
     
  6. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    I just got bored with the old one (no BS). And yeah, that's me. I am well preserved.:cool:
     
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