Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Physics
Classical Physics
Electromagnetism
How do you calculate voltage from Coulomb’s equation?
Reply to thread
Message
[QUOTE="sophiecentaur, post: 6001560, member: 199289"] It certainly is. Use the equation F = k[SUB]e[/SUB] Q[SUB]1[/SUB] Q[SUB]2[/SUB] / r[SUP]2[/SUP] [I](ke[/I] = 8.9875×10[SUP]9[/SUP] N m[SUP]2[/SUP] C[SUP]−2[/SUP]) and calculate the Force you would need to hold those two charges together. It is easy to ignore the actual numbers involved in simple thought experiments and you spotted the crazy PD needed. The Force is perhaps easier to appreciate. Then do the same thing to find the gravitational force between two 1kg masses, separated by 1m. Quite a bit smaller! But, of course, gravity just goes on and on and there are no balancing forces of repulsion that limit the effect of force between real electric charges. [/QUOTE]
Insert quotes…
Post reply
Forums
Physics
Classical Physics
Electromagnetism
How do you calculate voltage from Coulomb’s equation?
Back
Top