current

Discussion in 'Homework Help' started by ramphy, Jan 20, 2008.

  1. ramphy

    Thread Starter New Member

    Jan 20, 2008
    2
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    Why in the world do we have to amplify the current..???
     
  2. ramphy

    Thread Starter New Member

    Jan 20, 2008
    2
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    please also tell me whata transistor is???
     
  3. kotophey

    New Member

    Jan 20, 2008
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  4. hgmjr

    Moderator

    Jan 28, 2005
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  5. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
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    The answer to this is very much application specific. Do you have an example in mind?

    Dave
     
  6. chesart1

    Senior Member

    Jan 23, 2006
    269
    1
    Think about your television set. The signal received by the antenna is too weak to operate the picture tube or the speakers. Both the current and the voltage must be amplified.
     
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