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Ammeter reading in a circuit with a silicon diode (knee voltage)

This type of question, asked 3 times: May 2021 S1, 9 May 2023 S2, 19 Apr 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    May 2021 S1

    45
    What will be the reading in the ammeter for the circuit given below?

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  2. Question 2

    9 May 2023 S2

    34
    In the following circuit, the reading in the ammeter is

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  3. Question 3

    19 Apr 2026 S2

    150
    In the following electrical circuit, the reading in the milliammeter is (Take knee voltage of silicon diode =0.7= 0.7 V)

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