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Zener diode power rating: series resistance or maximum current

This type of question, asked 3 times: 10 May 2023 S2, 9 May 2024 S1, 19 May 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    10 May 2023 S2

    2
    In the given circuit, Zener breakdown voltage is 8 V. If power of Zener diode is 1.6 W. The value of R is

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  2. Question 2

    9 May 2024 S1

    11
    A 5.0 V stabilized power supply is required to be designed using a 12 V DC power supply as input source. The maximum power ratio of zener diode is 2.0 W. The minimum value of resistance RsR_s in Ω\Omega connected in series with zener diode will be

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  3. Question 3

    19 May 2026 S2

    149
    To use Zener diode of maximum power rating 1.01.0 W as a 4.04.0 V stabilized power supply, the maximum current flowing through Zener diode will

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