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What is the magnitude of the equatorial ...

What is the magnitude of the equatorial and axial fields due to a bar magnet of length 4 cm at a distance of 40 cm from its mid point? The magnetic moment of the bar magnet is a 0.5Am`""^2`

Text Solution

Verified by Experts

`B_(E) = 7.8125 xx 10^(-7) T, B_(A) = 15.625 xx 10^(-7) T`
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Knowledge Check

  • The magnitude of the equatorial magnetic field due to a bar magnet of length 2 cm at a distance of 1lm from its mid-point is (magnetic moment of the bar magnet is 0.60 A m)

    A
    `5.0xx10^(-5)` T
    B
    `6.0xx10^(-8)` T
    C
    `7.0xx10^(-7)` T
    D
    `8.0xx10^(-8)` T

  • What is the magnitude of axial field due to a bar magnet of length 3 cm at a distance of 75 cm from its mid-point if its magnetic moment is 0.6 Am?

    A
    0.013`mu` T
    B
    0.113 `mu` T
    C
    0.213 `mu` T
    D
    0.313 `mu` T

  • The magnetic field due to a short magnet at a point in its axis at distance X cm from the middle of the magnet is

    A
    `100` Gauss
    B
    `400` Gauss
    C
    `50` Gauss
    D
    `200` Gauss

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    A short bar magnet has a magnetic moment of 0.4 JT^(-1) The magnitude of the magnetic field (ingauss) produced by the magnet at a distance of 20 cm from the centre of the magnet on the equatorial line of the magnet is

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