Question

this is a question of physics class 12th 1) derive an expression for the electric field E due to dipole of length 2L at a point distant r from the centre of the dipole on the axial line ​

Answer 1

Answer:

ANSWER

Electric field at point P at a distance r from centre of dipole due to +q

EB=4πϵ01BP2q along BP    =4πϵ01(r−a)2q

Electric field at point P due to -q is

EA=4πϵ01AP2q along PA    =4πϵ01(r+a)2q

Net field at P is given by

EP=EB−EA=4πϵ01((r−a)2q−(r+a)2q)=4πϵ0q(

Answer 2

Answer:

thanks for following bro