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Two long bar magnets are placed with the...

Two long bar magnets are placed with their axes coinciding in such a way that the north pole of the first magnet is 2.0cm from the south pole of the second. If both the magnets have a pole strength of `10 Am`, find the force exerted by one magnet on the other.

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To find the force exerted by one magnet on the other, we can use the formula for the force between two magnetic poles: \[ F = \frac{\mu_0}{4\pi} \cdot \frac{m_1 m_2}{r^2} \] Where: - \( F \) is the force between the two magnetic poles, ...
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HC VERMA ENGLISH-PERMANENT MAGNETS-Exercise
  1. A long bar magnet has a pole strength of 10 Am. Find the magnetic fiel...

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  2. Two long bar magnets are placed with their axes coinciding in such a w...

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  3. A uniform magnetic field of 0.20 xx 10^(-3) T exists in the space. Fin...

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  4. Figure shows some of the equipotential surfaces of the magnetic scalar...

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  5. The magnetic field at a point, 10cm away from a magnetic dipole, is fo...

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  6. Show that the magnetic field at a point due to a magnetic dipole is pe...

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  7. A short bar magnet has a magnetic moment of 0.48JT^(-1). Give the dire...

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  8. A magnetic dipole of magnetic moment 1.44 A m^2 is placed horizontally...

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  9. A magnetic dipole of magnetic moment 0.72 Am^2 is planced horizontally...

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  10. A magnetic dipole of magnetic moment 0.72 Am^2 is planced horizontally...

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  11. The magnetic moment of the assumed dipole at the earth's centre is 8.0...

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  12. If the earth's magnetic field has a magnitude 3.4 xx 10^(-5) T at the ...

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  13. The magnetic field due to the earth has a horizontal component of 26 m...

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  14. A magnetic needle is free to rotate in a vertical plance which makes a...

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  15. The needle of a dip circle shows an apparent dip of 45^@ in a particul...

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  16. A tangent galvanometer shown a deflection of 45^@ when 10 mA of curren...

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  17. A moving coil galvanometer has a 50-turn coil of size 2cm xx 2cm. It i...

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  18. A short magnet produces a deflection of 37^@ in a deflection magnetome...

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  19. The magnetometer of the previous problem is used with the same magent ...

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  20. A deflection megnetometer is placed with its arms in north-south direc...

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