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Two unlike magnetic poles of strength 10...

Two unlike magnetic poles of strength `10A-m` each are held in air at a distance of `0*5m` from each other. What is the magnetic force of attraction between them?

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To find the magnetic force of attraction between two unlike magnetic poles, we can use the formula for the magnetic force between two magnetic poles: \[ F = \frac{{\mu_0 \cdot m_1 \cdot m_2}}{{4\pi \cdot r^2}} \] Where: - \( F \) is the magnetic force, ...
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Knowledge Check

  • The magnetic induction at distance of 0.1m from a strong magnetic pole of strength 1200 Am is

    A
    `12xx10^(-3)T`
    B
    `12xx10^(-4)T`
    C
    `1.2xx10^(-3)T`
    D
    `24xx10^(-3)T`

  • The magnetic induction at a distance 'd' form the magnetic pole of unkown strength 'm' is B . If an identical pole is now placed at a distance of 2d from the first pole, the force between the two poles is

    A
    `mB`
    B
    `(mB)/(2)`
    C
    `(mB)/(4)`
    D
    `2mB`

  • The magnetic potential at a point due to pole of strength m at a distance r is

    A
    `V=(mu_(0))/(4pi) (m)/(r)`
    B
    `V=(mu_(0))/(pir) (m)/(r^(2))`
    C
    `V=(mu_(0))/(4pi)(m)/(r^(3))`
    D
    `V=(mu_(0))/(4pi) (2m)/(r)`

    • Similar Questions

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    A magnetic pole of strength q_m is placed at a distance of 20 cm from another magnetic pole of triple its strength. If the two poles exert a force of 2.5 g f on each other, find the strength of each pole.

    Two identical magnetic dipoles of magnetic moments 1*0Am^2 each are placed at a separation of 2m with their axes perpendicular to each other. What is the resultant magnetic field at a point midway between the dipoles?

    A magnet of length 2l and pole strength m is equally divided in two parts, perpendicular to its length. What is the magnetic moment of each?

    Two bar magnets of length 0.1m and poles strength 75m each, are placed on the same line. The distance between their centres is 0.2 m. what is the reultant force due to one on the other when (i) the north pole of one faces the south pole of the other, (ii) the north pole of one faces the north pole of the other ?

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