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
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
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
Homework Help
Introductory Physics Homework Help
Force between the plates of a capacitor with dielectric slab inserted
Reply to thread
Message
[QUOTE="kuruman, post: 6852850, member: 192687"] My argument is that the bound charges at one conductor-dielectric interface have opposite sign to the free charges effectively partially reducing the surface charge density that the charges at the opposing interface "see". This reduces the attraction between plates. The energy argument illustrates this better. If a dielectric is inserted at constant charge, the energy stored in the capacitor is reduced by a factor of ##\kappa.## Reduced stored potential energy means reduced force that one plate exerts on the other. This can be verified by a simple thought experiment. Release the plates and let them collide. The plates in the configuration of higher potential energy will have higher kinetic energy before they collide which means higher acceleration and hence larger force. I find such questions ambiguous. Forces are exerted [B][U]by[/U][/B] entity A [B][U]on[/U][/B] entity B. This format clearly identifies the system and the external force that acts on it. [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Introductory Physics Homework Help
Force between the plates of a capacitor with dielectric slab inserted
Back
Top