8. Electric Charges
by M. Bourne
The force between charges is proportional to the product of their charges and inversely proportional to the square of the distance between them.
So we can write:
where q1 and q2 are in coulombs (C), x is in metres, the force is in newtons and k is a constant, k = 9 × 109.
It follows that the work done when electric charges move toward each other (or when they are separated) is given by:
An electron has a `1.6 × 10^-19\ "C"` negative charge. How much work is done in separating two electrons from `1.0\ "pm"` to `4.0\ "pm"`?
Didn't find what you are looking for on this page? Try search:
Online Algebra Solver
This algebra solver can solve a wide range of math problems. (Please be patient while it loads.)
Go to: Online algebra solver
Ready for a break?
Play a math game.
(Well, not really a math game, but each game was made using math...)
The IntMath Newsletter
Sign up for the free IntMath Newsletter. Get math study tips, information, news and updates each fortnight. Join thousands of satisfied students, teachers and parents!
Short URL for this Page
Save typing! You can use this URL to reach this page:
Calculus Lessons on DVD
Easy to understand calculus lessons on DVD. See samples before you commit.
More info: Calculus videos