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A zener diode of power rating 2W is to be used as a voltage regulator. If the zener diode ha s breakdown of 40V and its has to regulate voltage fluctuated between 6 V and 14 V, the value of Rs for safe operation should be_______   Ω .

 

0 3 Views | Posted 2 months ago
Asked by Shiksha User

  • 1 Answer

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    Answered by

    alok kumar singh | Contributor-Level 10

    2 months ago

    Maximum current through zener diode,

      i = 2 1 0 = 0 . 2 A             

    When unregulated voltage is 14V,

    Potential difference across Rs,

                  VS = 14 – 10 = 4V

    R S = V S i = 4 0 . 2 = 2 0 Ω

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