The electric flux through each of the six sides of a rectangular box are as follows:

phi 1= +150.0 N*m^2/C; phi 2= +250.0 N*m^2/C;
phi 3= -350.0 N*m^2/C; phi 4= +175.0 N*m^2/C;
phi 5= -100.0 N*m^2/C; phi 6= +450.0 N*m^2/C

How much charge is in this box?

1 answer

Add them up and apply Gauss' law to the sum.