Question

Unknown number of charges is placed inside the sphere of radius 2.1 m centred at (0,0,0) Charges are positioned at the grid points defined by integer values of coordinates For example: (1,0,0), (1,1,0) (0,0,1) (2,0,0) (1,-1,-1,) etc. The value of each charge is the algebraic sum of all its coordinates multiplied by e=1.6x10^-19C So at (1,0,0) the Q_^(1,0,0) = (1+0+0) e=e at (1,1,1) the Q_(1,1,1) = (1+1+1) e=3e Find the number of charges enclosed in the sphere as well as the total charge inside it.

Answer 1