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Current through the 100 ohm resistance in a circuit of three diodes with a given forward resistance

The same question, asked 2 times: 20 Apr 2025 S2*, 17 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    20 Apr 2025 S2

    42
    In the following circuit shown in figure, three diodes are connected each with forward resistance 40Ω40\Omega and infinite backward resistance. The current through 100Ω100\Omega resistance is

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  2. Question 2

    17 Apr 2026 S1

    150
    In the circuit shown in figure all the three diodes D1, D2, D3 have forward resistance 50 Ω50\,\Omega each and infinite backward resistance. If the battery voltage is 5V, the current through 100 Ω100\,\Omega resistance is

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