Drawing power form a 12V car battery, a 9V stabilized DC voltage is required to power a car stereo system, attached to the terminals A and B, as shown in the figure. If a Zener diode with ratings, Vz = 9V and Pmax = 0.27 W, is connected as shown in the figure, for the above purpose, the minimum series resistance Rs must be:-

Option 1 -

111 Ω

Option 2 -

103 Ω

Option 3 -

100 Ω

Option 4 -

97 Ω

0 3 Views | Posted a month ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    a month ago
    Correct Option - 3


    Detailed Solution:

    i m a x = P m a x V z = 3 1 0 0

    R s m i n = V R S i m a x

    = 3 3 / 1 0 0 = 1 0 0 Ω

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