The strength of a magnetic field is determined by the amount and orientation of the magnetic material present in the field. The greater the amount of magnetic material and the stronger their alignment, the stronger the magnetic field. Additionally, the distance from the source of the magnetic field and the shape of the magnetic region can also affect the strength of the field. When charged particles move through a magnetic field, they experience a magnetic force that can cause them to change direction or velocity, which is why the strength of magnetic fields is important in many applications, including electronics, medical imaging, and motors.
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