A charge is fixed at the origin of the co-ordinate system while a small electric…
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A charge +Q is fixed at the origin of the co-ordinate system while a small electric dipole of dipole moment p pointing away from the charge along the x-axis is set free from a point far away from the origin.
(1) Calculate the K.E. of the dipole when it reaches to a point (d,0) .
(2) Calculate the force on the charge +Q at this moment.