Chapter 18, Problem 1P

* (a) Construct a graph of the magnitude of the $\stackrel{\to }{E}$ field-versus-position for the $\stackrel{\to }{E}$ field created by a point-like object with charge $+Q$

, representing the $\stackrel{\to }{E}$ field magnitude as a function of the distance from the object. (b) Using the same set of axes, draw a graph for the field produced by an object of charge $+2Q$. (c) Using the same set of axes, draw a graph for the field produced by an object of charge $-2Q$.