
 # PROBLEM 19 # 
Standard formula used 
 E = (1 / (4 * pi * e0) * (q / r^2)). 
 Electric field intensity-
 (1) On the surface of the sphere = 8.991805e+03 N/C,
 (2) At first point = 0 N/C,
 (3) At second point = 3.596722e+02 N/C 