Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ruby negi
dear, try to analysis by urself first.. make a cube ( u know it has eight vertices) and each vertices have charge( let q1charge at 5 corners and q at other 6th corner) so each charge applies force kq1q/(r^2) force on the charge q. hope u will trying to get me.. I am sending u solution too, but first send me question on my email rubiinegii23@gmail.com
Mam actually such kinds of a questions are consuming a lot of time I am searching for some shortcut actually. i am asking u on mail