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Symbol of an op-amp is triangle only.why?

  1. Nov 14, 2008 #1
    help me here...symbol of an op-amp is triangular in shape...i need reason for this...why it is so...or where i can find regarding this..
    similar que for transistor also...
     
  2. jcsd
  3. Nov 14, 2008 #2

    mgb_phys

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    The symbol is totally arbitrary, somebody thought it up and other people copied it.
    Rememebr how you draw it in a schematic has no relation to how the real part actually looks.

    A triangle makes sense because there are 3 important connections to an opamp (2inputs and 1output) and there is a sense of direction, the inputs go toward the output so a shape like an arrow fits.
     
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