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BJT and FET

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  • #16
    Silicon has four valence electrons hence we can obtain semiconductors by suitably doping it. Also, Si circuits can be used at a bigger range of temperatures than Germanium

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    • #17
      I have never hurd BJT and FET produces noise

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      • #18
        BJT is a bipolar device hence it has noise due to storage of minority carriers , while JFET is a majority carrier device hence less prone to noise.

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        • #19
          A BJT's noise mostly comes from the forward biased base-emitter which separates base and emitter - the noise is lower than a MOSFET though but because the base current flows through this junction, the noise generated receives gain and appears as collector current.

          Regards,
          Brillianics Technologies Pvt. Ltd.
          Bangalore
          www.brillianics.com

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