Charged Particles: Electric & Magnetic Fields in 3D Space

In summary, charged particles have both electric and magnetic fields in spherical 3D space, with the strength of the fields falling off as 1/r^2. In diagrams of electromagnetic waves, the electric and magnetic fields are shown to be perpendicular and in an oscillating form. This is because for a stationary charged particle, there is only an electric field, but for a moving charge, there is both an electric and magnetic field. Accelerating charges create changing electric fields, which lead to the creation of electromagnetic waves. These waves have perpendicular electric and magnetic fields that help propagate them, with the direction of the wave being perpendicular to both fields.
  • #1
Cyclotron
23
0
Every charged particle has an electric and magnetic field yea?
Both the fields are in spherical 3D Space yea, where the strength of the fields fall off as 1/r^2? So in some diagrams found on the net why are the electric and magnetic fields perpendicular to each other and in an oscillating form?
 
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  • #2
Cyclotron said:
Every charged particle has an electric and magnetic field yea?
Both the fields are in spherical 3D Space yea, where the strength of the fields fall off as 1/r^2? So in some diagrams found on the net why are the electric and magnetic fields perpendicular to each other and in an oscillating form?

That's an electromagnetic wave. For a stationary charged particle you'll have an electric field that falls off as 1/r^2. You need a moving charge to have a magnetic field so there's no magnetic field attached to a stationary charge in it's rest frame.
 
  • #3
Ok that's solves a good part of what i was wondering thanks, but how is the magnetic field orientated compared to the E.field surrounding a charged particle traveling with a velocity v? Do both have a shape like the azimuthal quantum numbers or what?
 
  • #4
A stationary charged particle has electricfield, a moving but non-accelerating particle will have a magnetic field. But an accelerating charge will have changing electric fields which results in changing magnetic fields , leading to birth of Electro-magnetic wave.

The diagrams you are talking about in which electric and magnetic fields are shown to be prependicular and in oscillating form , are basically the diagrams of EM Wave as i told you above.In EM Waves Electric fields and magnetic fields are prependicular to each other, and both of these help propogate the EMW, The direction of EM Wave being prependicular to both E and B.

BJ
 

FAQ: Charged Particles: Electric & Magnetic Fields in 3D Space

1. What are charged particles?

Charged particles are particles that have an electric charge, either positive or negative. This charge allows them to interact with electric and magnetic fields.

2. How do electric and magnetic fields interact with charged particles?

Electric fields interact with charged particles by exerting a force on them, either attracting or repelling them depending on the charge. Magnetic fields interact with charged particles by causing them to move in a circular motion around the field lines.

3. What is the significance of 3D space in understanding charged particles?

3D space is important in understanding charged particles because it allows us to visualize the complex interactions between electric and magnetic fields in all directions. It also helps us understand the behavior of charged particles in different orientations.

4. How are electric and magnetic fields related?

Electric and magnetic fields are related through Maxwell's equations, which describe the relationship between electric charge, electric field, and magnetic field. In simple terms, a changing electric field produces a magnetic field, and a changing magnetic field produces an electric field.

5. How do scientists study charged particles in 3D space?

Scientists use a variety of tools and techniques to study charged particles in 3D space, such as particle accelerators, spectrometers, and computer simulations. These allow them to observe and manipulate charged particles and their interactions with electric and magnetic fields.

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