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Weak and Strong magnets: What happens to the speed of a weak bar magnet compared to the speed of a strong magnet if they are paired together

Sagot :

The magnetic force allows to find the answer for the change of the speed are;

  • The module remains constant
  • The radius of the orbit are:
  •      Small for strong magnets, the magnetic force is large
  •      Great for weak magnets, the magnetic force is small

Magnets are ferrimagnetic or ferromagnetic materials, this means that the spins of their atoms align spontaneously at room temperature, they can be classified into

  • Weak. These are magnets that have two or more atoms in its structure and each magnet has the spins opposite direction, which is why the magnetic fieldis weak.
  • Strong They are magnets where all the spins in the structure are aligned in a single direction, in general they are pure materials and their magnetic field is strong

The magnetic force between the magnet and a moving positive charge is given by

          F = q v x B

Where the bold letters indicate vectors, F is the force, q the value of the charge, v the speed and B the intensity of the magnetic field.

The vector product is a product between two vectors whose resultant is another vector perpendicular to the first two.

If we have two equal charges and with the same initial velocity, the force that is perpendicular is weak for weak magnets and high for strong magnets.

Let's analyze this result, the velocity is a vector, so the velocity changes. But since the force is perpendicular to the velocity its modulus remains constant and the direction changes.

Consequently, the effect of the intensity of the magnetic field on the velocity are:

  •  The modulus of velocity (speed) remains constant
  • The direction of the speed changes and the magnitude of this change is proportional to the magnitude of the magnetic field, the force is centripetal, so the change is in the radius of the orbit

              * For strong magnets the radius is small

              * For magnets weak in radius it is large

In conclusion using the expression for the magnetic force we can find the answer for the change of the velocity are;

  •   The module remains constant
  • The radius of the orbit are:

                *  Small for strong magnets, the magnetic force is large

                *  Great for weak magnets the magnetic force is small

Learn more about the magnetic force here:

https://brainly.com/question/9633443