I'm taking Electrodynamics and we are asked to sketch plots of the homework we are given. These "sketches" have to be in mathematica, matlab, or maple. I've finished the problems but don't know how to graph in mathematica.
the answers i got are as follows
a) Q/2?R 1/?(R^2-r^2 )
b) ?(x)=A/2? 1/?(a^2-x^2 )
c) Q/2a
