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Javier Lopez
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Does electrons or other particles attracted towards a magnet due its magnetic momentum?
Compare the usual parameter sets (position&momentum, energy&time, spin) with the Planck constant. If they are large a classical approach might work.Javier Lopez said:What is approximately the validity range of classical approach?
I don't know where you got that value from but it is three orders of magnitude too large.Javier Lopez said:I used for deuterium magnetic moment 7.95e-24 J/T (and all angles=0 to have maximum magnetic force)
Javier Lopez said:That is close to the famous 2 picometers where strong forces have a minimum
Why?, magnetic moment of loops makes them attract between them in 180º degree range and repels if in the 180º opposite directions like magnets does.snorkack said:A magnetic pole actually repels a free charge like an electron or a proton...
Consider a charge regardless of sign moving through uniform magnetic field with parallel field lines in direction other than directly along the magnetic field.Javier Lopez said:Why?, magnetic moment of loops makes them attract between them in 180º degree range and repels if in the 180º opposite directions like magnets does.
... and spin, which this thread is about.shjacks45 said:Magnetic fields only interact with charges in motion.
That is not true. See e.g. the Stern-Gerlach experiment.shjacks45 said:The ion would have spin angular momentum which affect particle internal energy levels only.
shjacks45 said:An ion at rest has no magnetic moment.
I assume you think Stern-Gerlach experiment use stationary particles?mfb said:... and spin, which this thread is about.That is not true. See e.g. the Stern-Gerlach experiment.
No, an ion at rest with a magnetic moment interacts with a magnetic field as a bar magnet at rest interacts with a magnetic field. If the magnetic field is homogeneous, there's only a torque to the effect of orienting the magnetic moment in direction of the field. If the magnetic field is inhomogeneous there's also a force. For magnetostatics it's ##\vec{F}=\vec{\nabla}(\vec{\mu} \cdot \vec{B})##.shjacks45 said:No. An ion at rest has no magnetic moment. The ion would have spin angular momentum which affect particle internal energy levels only. Magnetic fields only interact with charges in motion.
Magnetic moments refer to the property of a particle or object to have a magnetic field associated with it. It is a fundamental property of elementary particles such as electrons and protons, as well as larger objects such as atoms and molecules.
Electrons and protons have an intrinsic magnetic moment, which means that they naturally possess a magnetic field. This is due to their spin and charge, which are the two components of an electron or proton's magnetic moment.
No, electrons and protons are not attracted to each other solely due to their magnetic moments. While their magnetic fields do interact, the main force of attraction between electrons and protons is the electromagnetic force, which is much stronger than the force of their magnetic fields.
Yes, electrons and protons can be repelled by their magnetic moments when their magnetic fields are in opposite directions. This is known as diamagnetic interaction and is a weak repulsive force between particles.
In a magnetic field, the magnetic moments of electrons and protons will align with the direction of the field. This can cause particles to experience a force and move in a circular or helical path, depending on their charge and the strength of the field. This phenomenon is known as the Lorentz force.