Finding total flux on Gaussian surface

[phymateng]

Homework Statement

Consider the uniformly charged sphere with radius R. Q is the total charge inside the sphere. Find the total flux passing through the Gaussian surface (spherical shell) with radius r. (r<R)

Homework Equations

I I tried solving for the Electric Flux by simply dividing the Q by Empselon Knot thought this was too simple to be right, and as I suspected it, it was wrong.

The Attempt at a Solution

I used the formula for the electric flux but using Q divided by Empselon Knot and got it wrong. Maybe I'm not getting the concepts right.

 

[tiny-tim]

Welcome to PF!

Hi phymateng! Welcome to PF!

(it's called "espilon nought" … oh, and have an epsilon: ε )

r < R, so the surface is inside the sphere, so it's not all of Q.

 

[phymateng]

Thank you. Yes, Q is the total charge inside the sphere and they are asking me to find the total flux passing through a gaussian surface of radius r inside the sphere. Radius of sphere is R. (so r<R)

 

[orthovector]

this solid sphere is a non conductor i assume..right?

 

[phymateng]

it doesn't say. So I assume it isn't.