The strength of a magnet is directly linked to the power of the magnetic field it creates. 

Understanding Magnetic Field Intensity: There are two key ways to measure the intensity of a magnetic field: magnetic field strength (H) and magnetic flux density (B). The equation B = μH shows how these two measures are connected, with μ representing the magnetic permeability of the surrounding material. This equation reveals that the magnetic field strength (H) has a direct impact on the magnetic flux density (B), which is a direct measure of the field's strength.
What Affects Magnetic Field Strength: The strength of the magnetic field produced by a magnet depends on several factors, including the material it's made of and its physical characteristics, such as its size and shape. For example, a magnet made of a material with high magnetic permeability or one that's larger in size will typically produce a stronger magnetic field.

Measuring Magnet Strength: The strength of a magnet can be measured in two ways: by its magnetic flux density (in teslas or gauss) and its magnetic field strength (in amperes per meter). The higher these measurements are, the stronger the magnet and the magnetic field it produces.

Visualizing Magnetic Fields:
In practical terms, the magnetic field is strongest at the poles of a magnet, where the field lines are packed tightly together. This density of field lines is a clear indicator of a strong magnetic field and can be visually observed. In summary, a magnet's strength is directly tied to its ability to produce a strong magnetic field, which is influenced by factors like material properties and physical characteristics. This fundamental relationship is supported by both theoretical equations and practical observations, and is crucial for understanding how magnets work.