Electronics: Question about input/output impedance

well can any one please explain why the input impedance of any electronic circuit should be high and why the output impedance should be low


  • reachrkata
    Simple -

    1) Input impedance of a system should be high so that the system does not load the source.

    2) Output impedance of a system should be low so that any load connected to this system does not receive a lower voltage because of a voltage drop across the system output impedance.

  • shiva kumar
    shiva kumar
    thanks dude

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