What is Charged particles: Definition and 186 Discussions

In physics, a charged particle is a particle with an electric charge. It may be an ion, such as a molecule or atom with a surplus or deficit of electrons relative to protons. It can also be an electron or a proton, or another elementary particle, which are all believed to have the same charge (except antimatter). Another charged particle may be an atomic nucleus devoid of electrons, such as an alpha particle.
A plasma is a collection of charged particles, atomic nuclei and separated electrons, but can also be a gas containing a significant proportion of charged particles.

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  1. S

    A few questions about charged particles

    I understand the basic forces moving charges experience in magnetic fields. I dont; however, understand how these these charges would interact with particles uninfluenced by the magnetic field. 1. If a charged particle is moving perpendicular to a uniform magnetic field, it will follow a...
  2. G

    Light interaction with charged particles

    Does anybody know what happens when say a laser accelerates charged particles? Do photons get absorbed and the intensity of the laser drops, or do they get absorbed and scattered and there's a redshift of the photon etc
  3. R

    Charged particles in a liquid and B field

    I would like to ask your opinions on what would happen if you had a liquid containing charged particles and then applied a sinusoidal magnetic field? 1. would the particles move in one direction and when the current changes direction then move in the other direction? 2. would there be a...
  4. moenste

    Fleming's left-hand rule on charged particles

    Homework Statement Diagrams (a) to (c) show a magnetic field of flux density 0.2 T directed perpendicularly into the paper. In each of (a) and (b) a conductor of length 0.3 m is entirely within the field and is carrying a current of 4 A in the plane of the paper. In (c) an electron is moving in...
  5. K

    Charged Particles (Potential Energy)

    Homework Statement Figure 24-21 shows four pairs of charged particles with identical separations. (a) Rank the pairs according to their electric potential energy (that is, the energy of the two-particle system), greatest (most positive) first. (b) For each pair, if the separation between the...
  6. Roy Stout

    Charged particles passing through a magnetic wave?

    Random thought... Is it possible for a charged particle to travel fast enough, or simply enter a magnetic field at just the right time in the magnetic wave's cycle, to pass through the magnetic field unaffected? If so, what is that calculation. If not, why not. Roy
  7. L

    Motion of charged particles in electric and magnetic fields

    Homework Statement 1) Describe and explain what happens to the electron beam on the screen of a teltron tube as the EHT(electrical high tension) voltage increases from 3000V to 3500V. 2)What is the effect of E field on light waves? Homework EquationsThe Attempt at a Solution 1) The beam...
  8. Proz3m0

    How to derive kinetic energy equation for charged particles

    I know there are some threads discussing about the Lorentz force equation but this is something different I came across and I couldn't find anyway to derive that formula. To be specific I'm talking about a charged particles in a magnetic field, where F=vqB and everything that is moving has...
  9. S

    Coupled differential equations for charged particles

    Hello, I wanted to study the behaviour of electrons in a spatially bounded system. I want to have a larger number of electrons, but I took 3 to start with and arrived at this system of coupled equations: \begin{align}\begin{bmatrix} \mathbf{\ddot{x_{1}}}\\ \\ \mathbf{\ddot{x_{2}}}\\ \\...
  10. C

    Wave propagating inside moving charged particles

    Hello. Sorry if my question sounds somewhat weird (I'm a mathematician, not a physicist). I am trying to understand something for my work. I would like to know what is your opinion about it. Assume that there are two electrodes inside a vacuum tube, with a difference of potential between them...
  11. toumaza

    Electromagnetism and charged particles in motion

    Whenever a charged particle is in motion ,there is both electric and magnetic fields created. Why is it that we only study one of it at a time ?
  12. V

    Magnetic fields, charged particles and directions

    Homework Statement [/B] Charged particles with equal mass and identical initial velocities move through regions of space that may have magnetic fields. Rank the magnetic field in each case from greatest to least. For this question, fields out of the page will have positive values, while fields...
  13. 7

    Materiel for fixed target particle collisions

    I am constructing a linear particle accelerator and have come into a problem, I need a materiel that when a electron hits it the electron breaks apart in smaller particles and the materiel breaks apart (on the subatomic level of course) as little as possible and make a little exes radiation as...
  14. Garlic

    Creating a Cloud Chamber for Deflecting Charged Particles

    Hello and thanks for reading Homework Statement I'm in high school. I chose my yearly project in physics, and wanted to make a cloud chamber. The subject is "deflection of charged particles in a magnetic field", so I must set a magnet alongside the cloud chamber. I've prepared for it, bought...
  15. P

    What is the most efficient way to produce charged particles?

    hello! what is the most efficient way to produce charged particles? like protons (H+) or electrons or ions or anything like that thanks!
  16. S

    Charged particles moved into a B-field

    Homework Statement Two radioactive isotopes of singly charged plutonium(Pu-249 and Pu-244) are accelerated through a potential difference of 3.00kW and enter a uniform magnetic field of 1.50T directed perpendicular to their velocities. By performing relevat calculations, show that the ratio of...
  17. TheExibo

    Electric Fields and charged particles

    Let's say there's a question where there are two charges placed, and a point in between and above the line connecting the two charges forms a triangle like this: http://session.masteringphysics.com/problemAsset/1413940/2/p19.5.jpg What would one have to do in order to find the electric field...
  18. TheExibo

    Electric Force: Charged Particles Homework Solution

    Homework Statement Particles of charge q and 3q are placed 90m away from each other. A third particle is place in between them and the total electric force on this particle is zero. Determine the position of this particle. Homework Equations F(E)=(k)(q1)(q2)/(r^2) The Attempt at a Solution...
  19. BUI TUAN KHAI

    Bmax in Bohr's calculation for energy loss of charged particles (classical case)

    Dear all, I have inquiries about the Bohr's calculation for energy loss of charged particles. These inquires are from the "Techniques for Nuclear and Particle Physics Experiments" (W.Leo). On page 23 of this book, it is written that: the the interaction time is t = b/(γv), with b is the...
  20. K

    Force between two charged particles at a distance question, help please?

    Homework Statement Two small electrically charged objects are placed 6 centimeters (cm) apart, where they exert a force of 8 N on each other. How far apart must they be placed in order to exert a force of 1 N on each other? Assuming that the charges on the two objects are equal, what is the...
  21. BUI TUAN KHAI

    Leo's book [energy loss of heavy charged particles]

    Dear all, I am reading the "Techniques for Nuclear and Particle Physics Experiments" of W.R.Leo. I am confused when reading the section 2.2. Energy Loss of Heavy Charged Particles in Atomic Collisions (page 21). At the beginning of the second paragraph (from the bottom up), it is written that...
  22. P

    Forces between charged particles

    Homework Statement Suppose the magnitude of the proton charge differs from the magnitude of the electron charge by a mere 1 part in 109.What would be the force between two 1.7-mm-diameter copper spheres 1.7cm apart? Assume that each copper atom has an equal number of electrons and protons...
  23. stevendaryl

    Free Fractionally Charged Particles

    It is intriguing (to me) that while fractionally charged particles exist in the standard model, they are always bound into composite particles of integer charge. The standard model explains this by QCD: fractionally charged particles all have nonzero color charge, and so can't be free. But I'm...
  24. P

    Interaction of photons with charged particles

    Can someone please tell me the name of the theory describing the interaction of photons with charged particles eg electrons, protons? Can you also suggest a good introductory web page describing that theory at First Year University level for self study? Better still, a good VIDEO lecture on...
  25. C

    Three charged particles, finding the net force on each particle

    Homework Statement Three charged particles are placed at the corners of an equilateral triangle of side 1.20 m (see figure). The charges are Q1 = +3.5 µC, Q2 = -7.2 µC, and Q3 = -5.1 µC. Calculate the magnitude and direction of the net force on each due to the other two. (Assume the +x axis...
  26. T

    Electrostatics Problem -Two moving charged particles

    Two small particles have electric charges of equal magnitude and opposite signs. The masses of the particles are m and 2m. Initially, the distance between the particles is d, and the velocities of the particles have equal magnitude v. However, the velocity of particle 2m is directed away from...
  27. C

    Electric & Magnetic Fields: Charged Particles Difference

    What's the difference between electric and magnetic fields, specifically I someone was to send a charged particle into them? Are there any similarities?
  28. U

    Charged particles in magnetic field

    Homework Statement Two particles have equal masses m and electric charges of equal magnitude and opposite sign (+q and –q). The particles are held at rest in uniform magnetic field B. The direction of the field is perpendicular to the line connecting the charges. The particles are released...
  29. U

    Charged particles arranged in tetrahedron

    Homework Statement Four charged particles (A, B, C, D), of mass m and charge q each, are connected by light silk threads of length d forming a tetrahedron floating in outer space. The thread connecting particles A and B suddenly snaps. Find the maximum speed of particle A after that. The...
  30. B

    Two suspended charged particles, find the angle from vertical.

    Homework Statement Two particles, each of mass m and having charge q, are suspended by strings of length l from a common point. Find the angle θ which each string makes with the vertical. Homework Equations F_e = k \frac{q^2}{r^2}, \quad F_G = -mg, \quad F_T = \text{tension on string}...
  31. Spinnor

    5 positivly charged particles on sphere, min energy configuration, rel

    Assume 5 charged particles (charge 1) constrained to live on the surface of a sphere are in a configuration that minimizes electrostatic potential energy. Are there configurations that are stable but that are not the minimum energy configuration? A simple computer program could quickly(?)...
  32. harjot singh

    Why Does the Movement of Charged Particles Create a Magnetic Force?

    here is my question,a simple one that is :- why with the movement of charged particles a magnetic force develops through it?is it have any relation with quantum?explain me all about it?
  33. H

    Force between two charged particles

    Homework Statement Two particles with a similar charge are held at a distance of 3.2*10^-3 m and then released. The acceleration of the first particle is measured at 7.0 m/s^2, and for the second at 9.0 m?s^2. The mass of the first particle is 6.3*10^-7. What is the mass of the second...
  34. S

    Photons and charged particles and dark matter

    Are photons capable of interacting with particles with no charge. And if not, is it possible that that's the reason dark matter has so far eluded detection: because it has no charge?
  35. F

    Aluminium has no negatively charged particles?

    Q: "A graduate student tells you that he has observed a Schottky defect in a sample of pure aluminium. Explain why it may take a long time for this graduate student to get his Ph.D" A: "Pure aluminium has no negatively charged particles, so a Schottky effect can not occur." So I know a...
  36. Q

    Relativity with Charged Particles & Fluid Approx.

    Hello community, I'm new here. I'm using FORTRAN to model the motion of electrons and ions when accelerated under a high voltage potential. I'm using a fluid approximation and MHD-like equations (conservation of mass, energy, momentum) and a finite volumes numerical method to solve the...
  37. F

    Magnetic fields and charged particles

    Hi, just reviewing some of my physics material, and realized I had a question that has never been answered for me. I know that charged particles, traveling parallel to a magnetic field, feel no force either forwards or backwards, but feel a force perpendicular that causes them to spiral...
  38. B

    Electric Potential and Potential Energy Due to Charged Particles

    Two charged particles of equal magnitude are located along the y-axis equal distances above and below the x-axis. Plot a graph of the electric potential at points along the x-axis over the interval -3a<x<3a. You should plot the potential in units of (KeQ)/a Let the charge of the particle...
  39. 0

    (Very Basic) Movement of Charged Particles Through Parallel Plate Apparatus

    Homework Statement What is the electric potential two-fifths of the way through a parallel-plate apparatus (from the positive plate) if the plates have a total separation of 5cm and field strength of 5000N/C.Homework Equations Difference Potential Energy = Electric Field Strength x Distance V =...
  40. A

    Ranking forces between charged particles

    Homework Statement Two charges with magnitude (Q) experience a force (F) when held a distance apart. Rank from smallest to largest the forces between charges of the following magnitudes (q), held the following respective distances (r) apart. (There may be ties.) A) q= Q/3 r= R/3 B) q= 2Q...
  41. S

    Potential Energy of a System of charged particles

    Homework Statement Homework Equations V = kQ/r PE = Vq The Attempt at a Solution Tried a lot of ways... get an order of magnitude less than the answer and also off by a bit too. Please help. I think you are supposed to take V at each location then multiply by q since this is PE. I carry...
  42. V

    Charged Particles and Ionization

    I'm studying A Level physics. I've read that a bubble chamber only shows up particles with a charge, as they ionize the hydrogen in the chamber, leaving tracks, whereas neutral particles don't show up. Is it therefore true then that only charged particles ionize? Because UV-radiation is ionizing...
  43. Q

    Do Charged Particles Exhibit Stronger Gravitational Fields?

    Hello ladies and gentleman! I have a question that I have been wondering about for some time now. Does a particle with mass m and charge q have a larger gravitational field than a particle that is the same with mass m but no charge? I am assuming that the particles are static. I thought that...
  44. M

    Is there any other software to visualise n-body interaction of charged particles

    Is there any other software to visualise n-body interaction of charged particles in real time by modelling both electric AND magnetic forces, like this: "Virtual Bubble Chamber" Electric and Magnetic Fields: Positron & Electron do the helix dance...
  45. J

    So what does a single photon do to a group of charged particles?

    I have heard, but never seen a representation, that we know the characteristics of photons because of their reaction with other charges particles. So what exact physical motions are induced on the particles when a photon travels through them. Does the magnitude of the electric and magnetic...
  46. S

    Electric field due to two charged particles problem (includes solution)

    Homework Statement Problem: Two point charges of magnitude 0.1 μC and opposite signs are placed in a vacuum on the x-axis at positions -/+ 1, respectively. (a) Calculate the field intensity at the point (0, 1). (b) Approximate the value of intensity at a point 10 cm away from one charge...
  47. Crazymechanic

    Charged particles through magnetic field

    I have a question that I want to verify , so that i know is my understanding about how the LHC works. So basically there is this charged particle being thrown into a huge lone tube consisting of superconducting magnet rings and while each of the magnet rings has it's magnetic field traveling...
  48. B

    Equation for the Motion of a Charged Particle in an Electric Field

    Homework Statement This is a problem I was thinking about which I haven't come across in my course. Two particles with mass, m, and a positive charge, q, are separated by a distance r0. One particle is unable to move while the other is released and is repelled. Find an equation for the motion...
  49. L

    Can I Observe Photon Emission from Accelerating Charged Particles?

    Accelerated charged particles radiate photons. If I am accelerating along with the particle will I see it radiate?
  50. P

    Accelerating charged particles emit EM waves?

    I know that if you have alternating current in a wire, it will produce electromagnetic waves since the electric and magnetic field change direction continuously as the wave propagates, and that the wave direction, orientation of the E component, and orientation of the B component will all be...
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