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Distance of the metre bridge null point from the centre of the wire for given gap resistances

The same question, asked 3 times: 2 May 2023 S1*, 15 Apr 2026 S2*, 16 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    2 May 2023 S1

    40
    The resistances in the left and right gap of a metre bridge are 40 Ω40\,\Omega and 60 Ω60\,\Omega respectively. When the bridge is balanced, the distance of the null point from the centre of the wire towards left is

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  2. Question 2

    15 Apr 2026 S2

    129
    In metre bridge experiment, the resistance in the left gap is 15 Ω\Omega and in the right gap is 45 Ω\Omega. The bridge is balanced. The distance of the null point from the centre of the wire is

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  3. Question 3

    16 Apr 2026 S1

    130
    A metre bridge experiment, the resistance in the left gap is 20 Ω20\,\Omega and in the right gap is 60 Ω60\,\Omega. The bridge is balanced. The distance of the null point from the centre of the wire is

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