Work needed to move an Electron

  • #1
2
0

Homework Statement


Calculate the amount of work (in electron-volts) it would take to move an electron from 15.1 m to 16.2 m away from a +3.50 μC point charge.

Homework Equations


W=qΔV (?)
[/B]


The Attempt at a Solution


None yet. I'm not even sure where to start!
 

Answers and Replies

  • #3
HallsofIvy
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The force will decrease as you move the electron away from the charge so just "force times distance" is not sufficient. You will need to use "integral or force times dx".
 
  • #4
BvU
Science Advisor
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The force will decrease as you move the electron away from the charge so just "force times distance" is not sufficient. You will need to use "integral or force times dx".
Correct. And complicated. That's why it's convenient to use the potential. Post #2 puts the key question for this one !
 

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