see dhruv , in case of a conducting body no doubt the charge resides on its outer surface but the charge distribution i.e charge density is not uniform . it is max where radius of curvature is min and vice-versa .

Along the x-axis, three charges q/2 , -q and q/2 are placed at x=0 , x=a and x=2a respectively.The resultant electric potential at a point 'p' located at a distance r from the charge -q(a<<r) is   ______________      

 

 

a dipole is stable though it consists 2 opp charges b'coz they are seperated by a resonable amt of distance to overcome thir repulsive forces

 

actually , dipole is a system which contains 2 opp charges seperated bya distance such that distance of field point is greater than the distance between the opp charges.

 

 

 

rate if u find it useful!!!!

charges reside on the outer surface of a conductor b'coz like charges repel and try to get as far away as possible from one and another and stay at the farthest point from each other which is the outer surface of the conductor 

 

 

 

 

 

 

rate if useful!!!!!!

@rphy can u tell me what exactly is uniform .

Q1) is the work done in an electrostatic field - always zero or zero at times? 

 

Q2) what is uniform in a uniform electicfield -----potential , potential gradience , both or neither?

 

pls provide ans with reasons .

there are 2 parallel infinetely long metallic cylinders of radius 'r' each . their axis are seperated by a distance of 'a' units. charge distribution on the 1st cylinder is +ve  and on the 2nd cylinder is -ve . find the potential difference between the cylinders.

 

pleaaaase send a detailed solution as i'm not vry good at potentials.

calculate E-field and E-potential of a hollow hemisphere of charge distribution at its centre

 

ans-/4*pi*₀