ECED 3300 Electromagnetic Fields

Homework Assignments Not all problems are from the 6th Edition of your textbook

Assignment 2: P. 4.3; P.4.8; P. 4.23; P. 4.38; P. 4.61; P4.65; P4.66; P4.67

Due October 5th, 2016.

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4.65 : A cylindrical pipe with a 1.00 cm wall thickness and an inner radius of 4.00 cm is centered

on the z-axis and has an evenly distributed 3.00 C of charge per meter length of pipe. Calculate

and sketch Dρ as a function of radial distance from the z-axis over the range 0 ≤ ρ≤ 10 cm.

4.66 Electric field due to surface charge density. A disk of radius a [m] is charged with a non-

uniform charge density ρs = ρ0ρ [C/m2], where ρ [m] is the distance from the center of the disk and ρ0 is a constnt. Calculate the electric field intensity at a distance h [m] from the center of

the disk, on the axis.

4.67: We saw in class that the Electric field far away from a dipole is given by

Where p = Qd is the dipole moment. Express Ed in spherical coordinates (r,θ), using the

configuration below, where the point p lies in the z-y plane.