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.

Explanation

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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