What is the electric flux φ through each of the six faces of the cube? use ϵ0 for the permittivity of free space (not the emf symbol e0).

Hi there!

Recall the equation for electric flux:

Assuming a charge enclosed by a cube, we know the total electric flux is equal to:

Since there are 6 faces for a cube, we know that each face has 1/6th of the flux passing through it.

Therefore, the amount of flux going through EACH face is equal to:

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)