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Ratio of resistances between A and B when the ideal diode is forward and reverse biased

The same question, asked 2 times: 10 May 2024 S2, 15 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    10 May 2024 S2

    48
    For the diagram shown, the resistances between points A and B when ideal diode d is forward biased is 'R1R_1' and that when reverse biased is 'R2R_2'. The ratio R1:R2R_1:R_2 is

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  2. Question 2

    15 Apr 2026 S2

    149
    In the diagram shown, the resistance between points A and B is 'R1R_1' when an ideal diode D is forward biased and is 'R2R_2' when ideal diode D is reverse biased. The ratio R1/R2R_1/R_2 is

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