In the figure a "semi-infinite" nonconducting rod (that is, infinite in one direction only) has uniform linear charge density = 3.33 µC/m Find (including sign) (a) the component of electric field parallel to the rod and (b) the component perpendicular to the rod at point P (R = 36.0 m). (a) Number i 832.5 (b) Number i 832.5 R Units Units N/C or V/m N/C or V/m

A -1.11 nC point charge is located inside a cavity of a hollow sphere of conducting material with charge 6.72 nC and of radius 10.0 cm.  Calculate the electric field 0.473 m from the point charge in units of N/C.  Assume answers are in the radial direciton such that if the field points radially away your answer will be positive and if the field points radially in your answer will be negative.  Give your numerical result to 3 significant figures and type in the units after your numerical answer.

The electric field everywhere on the surface of a thin, spherical shell of radius 0.700 m is of magnitude 855 N/C and points radially toward the center of the sphere. (a) What is the net charge within the sphere's surface? 1.16e-8 If a positive charge exists inside the sphere, what direction would the electric field point outside the sphere? nC (b) What is the distribution of the charge inside the spherical shelI? O The positive charge has a spherically symmetric charge distribution. O The negative charge has a spherically symmetric charge distribution. O The negative charge has an asymmetric charge distribution. O The positive charge has an asymmetric charge distribution.

A -2.87 µC charge is placed at the center of a conducting spherical shell, and a total charge of +8.70 µC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.