wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Intensity of electric field due to an electric dipole in co-axial position? explain

Open in App
Solution

Suppose there is a system of charges -q (at A) and +q (at B) separated by a distance 2a . Let P be any point on an axis where the field intensity is to determined.Electric field at P due to +qE=14π0q(BP)2 along BP=14π0q(r-a)2Electric field at P due to -q E'=14π0q(AP)2 along PA=14π0q(r+a)2Net field at P will be given by,EP=E-E'=14π0q(r-a)2-14π0q(r+a)2=q4π0[1(r-a)2-1(r+a)2]=2qa4π02r(r2-a2)2Now, 2qa=p, k=14π0EP=2kpr(r2-a2)2 along BP

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electric Flux
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon