Auniform charge density of 500 nc/m3 is distributed throughout a spherical volume (radius = 16 cm). consider a cubical (4.0 cm along the edge) surface completely inside the sphere. determine the electric flux through this surface.
a. 7.1 n m²/c
b. 3.6 n m²/c
c. 12 n m²/c
d. 19 n m²/c
e. 970

=3.62 N m^2 / C

Explanation:

We know that  electric flux φ

φ = Q / ε0   where Q is the"enclosed" charge - Gauss' Law

ε_0= constant

also,

φ = ρ V / ε0

ρ and V are density and volume and their product give charge density.

=

calculating we get

φ  = 3.62 N m^2 / C

therefore, electric flux through this surface =  3.62 N m^2 / C

a and c

c is 100% but i am confused in a

c. magnitude and direction