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A long bar magnet has a pole strength of...

A long bar magnet has a pole strength of `10 Am`. Find the magnetic field at a point on the axis of the magnet at a distance of 5cm from the north pole of the magnet.

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To find the magnetic field at a point on the axis of a long bar magnet at a distance of 5 cm from its north pole, we can use the formula for the magnetic field due to a magnetic dipole along its axis: \[ B = \frac{\mu_0}{4\pi} \cdot \frac{2m}{r^3} \] Where: - \(B\) is the magnetic field, ...
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A bar magnet is 0.10m long and its pole strength is 120 Am. Find magnitude of magnetic field at a point on its axis at a distnce 20 cm from it.

A bar magnet has a pole strengh of 3.6 A m and magnetic length 8cm . Find the magnetic field at (a) a point on the axis at a distance of 6cm from the centre towards the north pole and (b) a point on the perpendiuclar bisector at the same distance.

Knowledge Check

  • A bar magnet has a pole strength of 15 Am and magnetic length 20 cm. What is the magnetic induction produced by it at a point at a distance of 30 cm from either pole? (mu_(0)/(4pi)=10^(-7)" Wb/Am")

    A
    `1.11xx10^(-5)" Wb/m"^(2)`
    B
    `0.8xx10^(-4)" Wb/m"^(2)`
    C
    `1.5xx10^(-5)" Wb/m"^(2)`
    D
    `2.75xx10^(-5)" Wb/m"^(2)`

  • A bar magnet has a pole strength of 15 A m and magnetic length 20 cm. What is the magnetic induction produced by it at a point at a distance of 30 cm from either pole? (mu_(0)/(4pi) = 10^(-7)Wb//Am)

    A
    `1.11xx10^(-5) Wb//m^(2)`
    B
    `0.8xx10^(-4) Wb//m^(2)`
    C
    `1.5xx10^(-5) Wb//m^(2)`
    D
    `2.75xx10^(-5) Wb//m^(2)`

    • Similar Questions

    Explore conceptually related problems

    A bar magnet is 0.10 m long and its pole strength is 120 Am . Find magnitude of magnetic field at a point on its axis at a distance 20 cm from it .

    A bar magnet has a pole strength of 3.6 A-m and magnetic length 8 cm .Find the magnetic at (a) a point on the axis at a distance of 6 cm from the centre towards the north pole and (b) a point on the perpendicular bisector at the same distance.

    A bar magnet is 0.1 m long and its pole strength is 12 Am. Find the magnetic induction at a point on its axis at a distance of 0.2 m from its centre.

    A magnet 2cm long has a pole strength of 60Am . Find the magnitude of magnetic field strength B at a point on its axis at a distance of 20cm from it. What would be the value of B, if the point were to lie at the same distance on equatorial line of magnet?

    A bar magnet of length 10cm has a pole strength of 20Am . Find the magnetic field strength at a distance of 10cm from its centre on (i) its axial line and on (ii) its equatorial line.

    A 30 cm long bar magnet is placed in the magnetic meridian with its north pole pointing south. The neutral point is obtained at a distance of 40 cm from the centre of the magnet. Pole strength of the magnet is (The horizontal component of earth’s magnetic field is 0.34 Gauss)

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