1- Write Gauss’ Law.

2- Consider an electric field line passing through a closed surface. What is the sign of the flux if:

a) The line passes from inside to outside?

b)The line passes from outside to inside?

Think of a conductor as having both positive and negative mobile charges. Consider a conductor in electrostatic equilibrium – that is, whose charges are stationary.

3- Given that all of the charges are stationary, what must the E-field be at any point inside of the conductor?