Go back to Home PageGo back to Home Page
 
          The Institute           Courses offered           Admission Procedure           KS Alumni           Press
          Statement of Integrity           Academic Calendar           Fees Structure           Career Guidance           Blog
          KS Advantage           Faculty           Our centers           Featured Students           Forum
          From Director's desk           General Instructions           Download Prospectus           Testimonials           Contact
 

  Ask & Discuss Questions with Community & Experts
       in  Electricity
  500 chars left
Ask community Community Discussion Question: ELECTROSTATICS, ELECTRIC FIELD AND ELECTRIC POTENTIAL
Reply Forum Index -> Electricity originally posted here on IIT-JEE / AIEEE community   
Email  
Author Message
[Post New] 27 Jan 2012 12:44:17 IST
   Subject: The work of electric field done during the displacement of a negatively charged particle towards
[Up] View Post
B.V sreekanth (0)


B.V sreekanth's Avatar
total posts: 4    
Offline
The work of electric field done during the displacement of a negatively charged particle towards a fixed positively charged particle is 9J. As a result the distance between the charges has been decreased by half. What work is done by the electric field over the first half of this distance?Ans:3Jhow.
    
[Post New] 27 Jan 2012 13:13:07 IST
   Subject: ELECTROSTATICS, ELECTRIC FIELD AND ELECTRIC POTENTIAL
[Up] View Post
shivansh shrivastava (35)


shivansh shrivastava's Avatar
total posts: 188    
Offline
For initial positn of negativ charg,th potential due to positv charg is x/d (whr d is distanc and x is product of al c0nstants)..at half distanc,potential(V) is 2x/d. .so potential diff.(U) is x/d..it is givn as 9J,so x/d=9. . .at half of ths distanc(1/4 of total distnc). .distnc frm positive charg is 3d/4. .initial V=x/d. .final V=4x/3d . .potential diff,U=x/3d. .also x/d=9. .so U=9/3=3J
 
You have to be logged on to rate
  
 
reply Forum Index -> Electricity
Go to: 
  Name
  Email
  Phone
  City
  Class
  Mobile
 
powered by