2. Outline Area vector Vector flux More problems Solid angle Proof of Gauss’s Law

3. The flux of

4. More on area vector …. n

5. Suppose there was an electric field given by What would be the electric flux through a plane with area A if the plane were oriented in the y-z plane at ? What would be the electric flux if the plane were oriented in the x-z plane at ?

6. Suppose there was an electric field given by What would be the electric flux through a plane with area A if the plane were oriented in the xz plane at y = y 0 ? What would be the electric flux if the plane were oriented in the yz plane at x = x 0 ? Quiz

7. Suppose there was an electric field given by What would be the electric flux through a front side of a cube of side L? Quiz

8. Electric flux through a sphere A positive point charge q=3.0  C is surrounded by a sphere with radius 0.2 m centered on the charge. Find the electric flux through the sphere due to this charge.

9. Definition of a solid angle S does not depend on radius The largest Then

11. Chasing the tail: Electric field of a single fixed charge

12. Have a great day! Please don’t forget your pictures Hw: All Chapter 4 problems and exercises Reading: Chapter 5