help for this circuit?

Discussion in 'Homework Help' started by extremeads1, Jun 3, 2007.

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  1. extremeads1

    Thread Starter Active Member

    Feb 10, 2007
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    what is the name of the circuit used for the purpose, whenever there is an obstruction between a light emitter and a light reciever the path will be broken and this will be indicated by an indicator and when there is no obstruction between light emitter and reciever the path will be maintained .
    what type of circuit is this ? what can be used as light emitter and reciever ? any alternate circuit for this for the same ?
     
  2. extremeads1

    Thread Starter Active Member

    Feb 10, 2007
    64
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    sorry for posting this i got the circuit
     
  3. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
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    Given you have the circuit, would you like me to lock the thread?

    Dave
     
  4. extremeads1

    Thread Starter Active Member

    Feb 10, 2007
    64
    0
    ya sure ,once again i'm sorry for posting it
     
  5. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    No problems. Locked at the authors request.

    Dave
     
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