Magnetic Field: Mass, Charge, and Motion

In summary, the magnetic field is not directly associated with mass, but rather with electric charge. However, in field theory, the particle of electromagnetic field, the photon, can have relativistic mass when approaching the speed of light. However, this is not a commonly used concept as the rest/invariant mass of the photon is 0 and cannot be found in any reference frame. Therefore, there is no direct relationship between magnetism and mass, but rather with electric charge.
  • #1
D.R.U
33
1
How magnetic field associate with mass...
from the experiment we know that this is due to electric charge...
So is this another property of charge which come in front when charged particle goes in motion?...

Is this associate with mass or electric charge or with both?
 
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  • #2
I don't really understand your first question... there is no connection between the mass and the magnetic field... the one is a property of particles the other is a part of the electromagnetic field.
Some magnetic field is equivalent to an some electric field in another reference frame (or in Special Relativity, the electric and magnetic field are just the two sides of the same coin -electromagnetism)
 
  • #3
In field theory, it has been described that the particle of electromagnetic field is a photon. Although photons are massless particles, but they can have relativistic mass when they approach the speed of light. So, in this sense there might be some relationship between magnetism and mass.
 
  • #4
but they can have relativistic mass when they approach the speed of light
That is wrong in every phrase... The mistakes:
1."they approach the speed of light." That is actually wrong. Photons don't approach the speed of light, they run with the speed of light, because they are massless.
2."they can have relativistic mass." The relativistic mass is not a nice quantity to talk about, because it is frame-dependent and so physicists hardly ever use it. The rest/invariant mass is the way to walk. The rest mass of the photon is 0 and in fact you can't find any reference frame in which the photon would have some mass.
Even if you wanted to find the relativistic mass (although that's wrong to try for particles traveling at null-wordlines), you wouldn't be able to, because it's [itex]m_{rel}= \gamma m_{inv}[/itex]... if [itex]m_{inv}=0[/itex] then you are getting infinity times zero.
 
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  • #5


The concept of magnetic field is closely related to both mass and electric charge. The properties of mass and electric charge play a crucial role in determining the behavior of magnetic fields.

Firstly, mass is a fundamental property of matter that determines its inertia and resistance to acceleration. When a charged particle with mass moves through a magnetic field, it experiences a force due to its charge interacting with the field. This force is dependent on the particle's mass and its velocity, and it causes the particle to move in a curved path. Therefore, the mass of a charged particle is an important factor in understanding how magnetic fields affect its motion.

Secondly, electric charge is the source of magnetic fields. When charged particles are in motion, they create a magnetic field around them. This field is characterized by its strength and direction, which are determined by the properties of the charged particles, such as their charge and velocity. In turn, the motion of charged particles is affected by the presence of magnetic fields, creating a reciprocal relationship between mass, charge, and motion.

In summary, the association between magnetic field and mass is evident in the way that mass influences the motion of charged particles in a magnetic field. Similarly, the connection between magnetic field and electric charge is evident in the fact that electric charge is the source of magnetic fields and also determines the behavior of charged particles in a magnetic field. Therefore, both mass and electric charge are crucial in understanding the concept of magnetic field and its effects on charged particles in motion.
 

What is a magnetic field?

A magnetic field is a region in space where a magnetic force can be detected. It is created by the motion of electrically charged particles, such as electrons and protons.

How is a magnetic field measured?

A magnetic field can be measured using a device called a magnetometer. This device detects the strength and direction of the magnetic field.

How does mass affect the magnetic field?

Mass does not directly affect the strength of a magnetic field. However, the movement of charged particles with mass can create or influence the magnetic field.

What is the relationship between charge and magnetic field?

The strength of a magnetic field is directly proportional to the amount of electric charge present. The higher the charge, the stronger the magnetic field.

How does motion impact the magnetic field?

Motion is essential for the creation and interaction of magnetic fields. When charged particles move, they create a magnetic field, and the interaction between moving charges and existing magnetic fields can result in motion or acceleration.

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