M-Gaffar

another explanations? which better than alien.

No jobs are easy, depends on your skill, country, and your disciplines in physics, etc,.. choose job that you like, computing, engineer, scientist, whatever. money is second priority, comfort first.

its non-conducting ball, homogenous charged ball... thank you.

sorry wrong title.. Calculate E. bad english thank you. the problem is : calculate E in hollow of the ball. and i want to ask again... why this equations can be so different (image) ??

Hi , Everyone! I m confuse... how to measure the electric field inside the hole? i know if it was the center of the ball, it would be E = 0, but if the condition like this i dont know. how to measure it? Thanks.