Deriving and Verifying the Relativity Formula for Electron Speed

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SUMMARY

The discussion focuses on deriving and verifying the relativity formula for electron speed, specifically the function $$v(t) = \frac{At}{\sqrt{1 + (\frac{At}{c})^2}}$$ where $$A = \frac{qE}{m}$$. Participants analyze the relationship between force and velocity vectors, confirming that the derived expression satisfies the differential equation $$\frac{dv}{dt} = \frac{qE}{m}(1 - \frac{v^{2}}{c^{2}})^{-\frac{3}{2}}$$. This verification process is crucial for understanding the dynamics of electrons under electric fields.

PREREQUISITES
  • Understanding of classical mechanics and electromagnetism
  • Familiarity with special relativity concepts
  • Knowledge of calculus, particularly differentiation
  • Basic understanding of electric fields and forces on charged particles
NEXT STEPS
  • Study the derivation of Lorentz transformations in special relativity
  • Explore the implications of relativistic mass and energy equations
  • Learn about the behavior of charged particles in electric and magnetic fields
  • Investigate numerical methods for solving differential equations in physics
USEFUL FOR

Physicists, electrical engineers, and students studying advanced mechanics and electromagnetism will benefit from this discussion, particularly those interested in the behavior of electrons in electric fields.

Samkiwi
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Homework Statement
I'm having trouble finding the proof of the relativistic acceleration formula starting from the velocity formula, I've been working on it for a long time but I can't solve this question. :)
Relevant Equations
electromagnetism and relativity
It is an electron initially pushed by the action of the electric field. The vectors of force and velocity are parallel to each other.

Here's the questionA possible expression of speed as a function of time is the following:

$$v(t) = \frac{At}{\sqrt{1 + (\frac{At}{c})^2}}$$where is it $$A =\frac{qE}{m}$$
Taking into account that [2] can be written in the equivalent form.
$$\frac{dv}{dt}=\frac{qE}{m}(1-\frac{v^{2}}{c^{2}})^{-\frac{3}{2}}[3]$$
verify by deriving and substituting that the function v (t) defined by [2] satisfies [3]
 
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Try this: $$v(t) = \frac{At}{\sqrt{1 + (\frac{At}{c})^2}}$$
 
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thanks:bow:
 

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