In the middle of an innite layer of width d with the homogeneous volume charge density
+p there is an innite plane with the homogeneous surface charge densities a , see Fig.
1) (10 points) Find El-electric eld everywhere. Draw the graph.
2) (5 po
PHYSICS 403/503 ELECTRICITY AND MAGNETISM I
Physics 403/503 is the first semester of a one year junior/senior/graduate level course on
electromagnetism. The topics include vector analysis, electrostatics, magnetostatics, and electric
Charge density of electrons cloud in H atom is:
where a-is the Bohr radius, r- is a distance to the proton, which has a charge +e. Find E- an
electric eld in H atom. Investigate E at small r
a and large r