# Behaviour of charged particle.

• arul_k
In summary: The results would be different because in one case the charge is moving and in the other case it is stationary.
arul_k
A charged particle moving through a uniform magnetic field experiences a force perpendicular to the direction of motion due to the magnetic field created around the charged particle. I would like to know if the particle were stationary and a uniform magnetic field moved past it would the nature of the force experienced by the particle be the same? If yes, would it imply that the interaction of the magnetic field with the particle is responsible for the magnetic field around the charged particle and not the motion of the particle itself? Naturally, the motion of the particle and field would have to be measured against some fixed reference frame.

arul_k said:
… if the particle were stationary and a uniform magnetic field moved past it would the nature of the force experienced by the particle be the same? If yes, would it imply that the interaction of the magnetic field with the particle is responsible for the magnetic field around the charged particle and not the motion of the particle itself?

Hi arul_k!

I'm not completely understanding the question, but anyway if an originally purely magnetic field B is moved, it becomes a mixture of a magnetic field B' and an electric field E' …

B' has no effect on the particle (because it's stationary), and the entire effect is caused by E'.

tiny-tim said:
Hi arul_k!

I'm not completely understanding the question, but anyway if an originally purely magnetic field B is moved, it becomes a mixture of a magnetic field B' and an electric field E' …

B' has no effect on the particle (because it's stationary), and the entire effect is caused by E'.

so in other words there would not be any affect due to the uniform magnetic field

arul_k said:
so in other words there would not be any affect due to the uniform magnetic field

Yup! No effect due to the new uniform magnetic field.

tiny-tim said:
Yup! No effect due to the new uniform magnetic field.

Okay. Thanks, but I was wondering dosen't the relative motion between the magnetic field and the charged particle play a part in the interaction, after all the charged particle has no way of "knowing" whether it is moving or the uniform magnetic field is moving, so why should there be two different results.

arul_k said:
Okay. Thanks, but I was wondering dosen't the relative motion between the magnetic field and the charged particle play a part in the interaction, after all the charged particle has no way of "knowing" whether it is moving or the uniform magnetic field is moving, …

ah, but the charged particle always thinks it's stationary!

so there's no choice to make …

it sees a mixed magnetic and electric field anyway.

(for example, if you study an electron "orbiting" a nucleus, you can't explain Thomas precession properly unless you measure the electromagnetic field from the point of view of the electron)
… so why should there be two different results.

There aren't … the result is the same, whether we regard the electron as moving or stationary.

There aren't … the result is the same, whether we regard the electron as moving or stationary
.

Could you explain this further please. Thanks

arul_k said:
Could you explain this further please. Thanks

Sorry, I don't see what there is to explain …

what happens to the charged particle is the same, whichever frame of reference we choose.

Why do you think the results would be different?

## 1. What are charged particles?

Charged particles are atoms or molecules that have an imbalance of positive or negative electrical charge. This can be caused by gaining or losing electrons, resulting in a net charge.

## 2. What is the behavior of charged particles?

The behavior of charged particles is influenced by electric and magnetic fields. They can be attracted or repelled by these fields, and their motion can be affected by them.

## 3. How do charged particles interact with each other?

Charged particles can interact with each other through electrostatic forces. Oppositely charged particles will be attracted to each other, while particles with the same charge will repel each other.

## 4. What is the significance of studying the behavior of charged particles?

Studying the behavior of charged particles is important in understanding many natural phenomena, such as electricity, magnetism, and chemical reactions. It also has practical applications in fields such as electronics, medicine, and energy production.

## 5. How can charged particles be manipulated for practical applications?

Charged particles can be manipulated using electric and magnetic fields, as well as through different materials. This allows for the creation of devices such as transistors, magnets, and particle accelerators for various purposes.

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