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Field at the centre of a loop compared with the field on its axis at a distance equal to its radius

The same question, asked 2 times: 24 Jan 2023, 8 Apr 2023. Every wording below, oldest first.

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  1. Question 1

    24 Jan 2023

    1
    A circular loop of radius rr is carrying current IAIA. The ratio of magnetic field at the center of circular loop and at a distance rr from the center of the loop on its axis is:

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  2. Question 2

    8 Apr 2023

    120
    The ratio of magnetic field at the centre of a current carrying coil of radius rr to the magnetic field at distance rr from the centre of coil on its axis is x:1\sqrt{x}:1. The value of xx is___