PHIL 311 Lecture 15: October 24, 2019

A non-conducting disk of radius a lies in the z = 0 plane with its center at the origin. The disk is uniformly charged and has a total charge Q Find E on the z axis at (a) z = 0.5a, (b) z = 0.7a, (c) z =0.3a, (d) z = a, and (e) z = 2a (f) Use your results to plot E versus z for both positive and negative values of z. (Assume that these distances are exact.)

A nonconducting disk of radius (a) lies in the z=0 plane with its center at the origin. The disk is uniformly charged and has a total charge Q.

Find (E of z) on the z axis at

(a) z=.2a,

(b) z=.4a,

(c) z=.8a,

(d) z=a, and

(e) z=2a.

the strip is w wide, h high and l very long