Calculating Electron Speed from Accelerating Potential

Click For Summary

Homework Help Overview

The discussion revolves around deriving an equation to calculate the speed of electrons based on an accelerating potential. The subject area includes concepts from electromagnetism and kinematics.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants attempt to relate force, mass, and acceleration to the problem, questioning the meaning of "accelerating potential." Some express uncertainty about the definitions and implications of the terms used.

Discussion Status

There is an ongoing exploration of the concepts involved, with some participants providing clarifications about the role of potential difference in accelerating electrons. Multiple interpretations of the problem are being discussed without a clear consensus.

Contextual Notes

Participants are grappling with the definitions and implications of terms like "accelerating potential" and the relationships between force, charge, and energy in the context of the problem.

redneckpyhsic
Messages
2
Reaction score
0

Homework Statement



Derive the equation that would allow you to calculate the speed of the electrons from the accelerating potential.

Homework Equations



Fnet=ma
Ek=1/2mv^2
Ft=mv


The Attempt at a Solution


F=mv/t F=ma
a=v/t ?

I'm not even sure what it means by accelerating potential...
 
Physics news on Phys.org
redneckpyhsic said:
I'm not even sure what it means by accelerating potential...

That just means that an electrical source is providing a potential difference to accelerate the electron from rest to velocity 'v' .
 
Fe=Eq
F=mv/t
q=mv/tE
is that what it means?
 
redneckpyhsic said:
Fe=Eq
F=mv/t
q=mv/tE
is that what it means?

Work done by a pd = VQ, charge of an electron is e.
 

Similar threads

Potential difference to achieve speed
  • · Replies 4 ·
Replies
4
Views
2K
Electron accelerated through a potential and magnetic field
  • · Replies 3 ·
Replies
3
Views
3K
Electron brought to rest by the E-field, potential difference question
  • · Replies 4 ·
Replies
4
Views
6K
Ion moving through electric potential difference and magnetic field
  • · Replies 8 ·
Replies
8
Views
2K
Find the power needed to accelerate this elevator downward
  • · Replies 4 ·
Replies
4
Views
2K
Find the launch speed of a ball in a spring mechanism
  • · Replies 8 ·
Replies
8
Views
4K
Electric and Magnetic field acting on an electron
  • · Replies 25 ·
Replies
25
Views
6K
Unreasonable answer for acceleration of an electron in field
  • · Replies 3 ·
Replies
3
Views
2K
Circular Motion Questions (energies, forces, angular velocities, etc.)
  • · Replies 2 ·
Replies
2
Views
2K
Determine the speed and tension of keys swinging in a circular path
  • · Replies 8 ·
Replies
8
Views
2K