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Browsing Animations: Charged Particle Motion

7 Animations


Animate

cp-efield-02.iwp

A charged particle moves under the influence of an electric field oriented along the y-axis. Note this sign convention: The direction of positive E is +y (toward top of screen) The red and blue vectors on the particle represents its velocity and acceleration.

Animate

cpchall01.iwp

Challenge 1. An electron is shot along the +y-axis from the origin. Enter the magnetic field that will make the electron move in a path of radius 0.050 m. Note that a positive value of B-field indicates that B points outward from the screen. Also note the following: After making a change in any Input, click Reset. The grid spacing is 0.01 m along both axes. Form of powers of ten entry: 5E-3 = 0.005

Animate

cpchall02.iwp

Challenge 2. Orbiting alpha particle An alpha particle is shot along the +y-axis from the origin. Enter the magnetic field that will make the alpha move in a path of radius 0.050 m. Notes: A positive value of B-field indicates that B points outward from the screen. After making a change in any Input, click Reset. The grid spacing is 0.01 m along both axes. Form of powers of ten entry: 5E-3 = 0.005

Animate

cpchall03.iwp

Challenge 3. Unknown X particle Use magnetic fields to investigate the unknown X particle. Determine as much as you can about the charge and mass. Notes: A positive value of B-field indicates that B points outward from the screen. After making a change in any Input, click Reset. The grid spacing is 0.01 m along both axes. Form of powers of ten entry: 5E-3 = 0.005

Animate

cpchall04.iwp

Challenge 4. Explore electric field Investigate the motion of an electron in an electric field. Compare to the motion in a magnetic field. Try combinations of electric and magnetic fields. Notes: Positive E-fields are to the right and positive B-fields are out of the screen. After making a change in any Input, click Reset. The grid spacing is 0.01 m along both axes. Form of powers of ten entry: 5E-3 = 0.005

Animate

em-ratio-1d.iwp

An electron is accelerated from rest under the influence of a potential V1 (not shown). At the origin, the electron enters crossed electric and magnetic fields. The electric field is oriented in the -y direction and is produced by parallel plates with a potential difference equal to V2. The magnetic field is oriented in the -z direction (into screen) and is produced by Helmholtz coils.

Animate

em-ratio-2f.iwp

An electron is accelerated from rest and enters an electric field produced by parallel plates with a constant potential difference across them.