Question

A charge of 170 µC is at the center of a cube of edge 50.0 cm.

(a) Find the total flux through each face of the cube.

(b) Find the flux through the whole surface of the cube.

c) Would your answers to parts (a) or (b) change if the charge were not at the center? (Select all that apply.)

(a) would change(b) would changeneither would change

Answer 1

charge q = 170µC
              = 170 * 10^-6 C
Side of the edge a = 50.0 cm

                            = 0.50 m

(a). the flux through the whole surface of thecube ? = q / ?

where ? = permitivity of free space = 8.85 * 10^-12 C ² / N - m ²

=170*10^-6/8.85*10^-12

? = 19.2 * 10^6 N - m ² / C^(b). the flux through the each surface of thecube ? = q / 6?

where ? = permitivity of free space = 8.85 * 10^-12 C^{2 /} N - m ²

^{=170*10^-6 /6*8.85*10^-12}

So, ? = 3.201 * 10^6 N - m ² /C

(c). Part ( a) doesn't change

     Part ( b ) is changed

I hope help you.....