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Sayan Pal posted an Question
September 03, 2021 • 21:20 pm 30 points
  • IIT JAM
  • Physics (PH)

Solve this please

Question 9: In the following limiter circuit, an input votage V, = 100 Sin(100t) is applied. Assume that the diode drop is 0.7 V when it is FW bias. The Zener Breakdown voltage is 6.8 V. The maximum and min values of the O/P voltage respectively are a) 6.1 V, -0.7 V 1 KQ b) 0.7 V, -7.5 V c) 7.5 V, -0.7 V D DA V nt out d) 7.5 V, -7.5 V 6.8 V

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    Anshum Sharma best-answer

    option C is the correct answer During +ve part of Vi D1 will be forward biased Zener diode is reverse biased Thus net voltage = 6.8 + 0.7 = 7.5 V During -ve part of Vi D2 will be forward biased D1 will be reversed biased Thus net voltage = -0.7 V .

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