Safari Guide: Thomas OPENING QUESTIONS: First, what are some of the most important formulas and concepts that you recall regarding Gaussian surfaces? What are the key differences between a conducting sphere, and one that is an insulator? What are the key similarities? Think back to electric flux: what does it signify, and what are all of the different permutations that can be used to find it? OBJECTIVES: I will be able to describe the types of charge and the attraction and repulsion of charges. I will be able to calculate the charge of the surface of a given shape (sphere, cylinder, etc.), given the charge density I will be able to calculate the flux of an electric field through an arbitrary surface or of a field uniform in magnitude over a Gaussian surface and perpendicular to it. I will be able to describe qualitatively the patterns and variation with distance of the electric field of a uniformly-charged spherical shell. WORDS FOR TODAY: Electric Field: Surrounds an electric charge and exerts a force on surrounding charges Electric Potential: The difference in potential energy per unit charge between two locations in an electric field Electric Flux: Rate of flow of an electric field through a given area FORMULAE: Ε0 = 8.85 x 10-12 C2/Nm2 q(enc)=ρv Φ=EA Φ = qin/εo WORK O' THE DAY: