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A circular coil of radius 'r' carrying current I is equivalent to a magentic dipole. What is the magnetic moment of the di-pole?

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Knowledge Check

  • A conducting circular loop of radius r carries a current I. It is placed in a uniform magnetle field B such that B is perpendicular to the plane of the loop, The magnetic force acting on the loop is given by

    A
    IrB
    B
    `[2piIrB]`
    C
    0
    D
    `[piIrB]`
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