Would you please help me to understand the following questions?
(1) Consider a line of charge, density ?, length L, lying along the x-axis from 0 to L. Find the electric field E a distance z along the z-axis. What is the limiting value when z >> L ?
(2) Find the electricfield, E a distance z above a circular loop of charg

Hi. Can someone please explain to me what exactly the electricpotential is and how it differs from electricpotential energy -- not with equations, but in prose. (Or at least, with both.) I can read the equation, but I don't really understand what electricpotential IS. What is its significance?
Thank you!

The electricfield strength 4.10 cm from a very wide charged electrode is 4000 N/C.
What is the charge (in nC) on a 2.00-cm- diameter circular segment of the electrode?

A uniformly charged disk of radius 35.0 cm carries charge with a density of 7.90 x 10^-3 C/m^2. Calculate the electricfield on the axis of the disk at
(a) 5.0 cm,
(b) 10.0 cm,
(c) 50 cm and
(d) 200 cm from the center of the disk.

A uniformly charged ring of radius R has a total charge Q.
1) What is the magnitude and direction of the electricfield along the axis of the ring?
2) What is electricfieldpotential along the axis of the ring?
3) What is the electricfield at the center of the ring?
4) What is the electricpotential at the center o

See attached file for clarity.
Consider two circular parallel plates of radius R separated by a distance d R. Assume that these plates have uniformly distributed surface charges of Q and -Q. Electricfield vectors in the region between the plates will all point perpendicular to the plates from the positive

Please help with the following problems.
1. In the figure, two charges q1=+3.0uC and q2=-2.0uC are separated by 6.0cm.
a. Find the electric forces exerted on each other (magnitude and direction)
b. Find the electricfield from point P, which id 4.0cm to the right q2 (megnitude and direction).
c. Find the positions along t

Problem 1
A charge is moved from one place to another in an electricfield. In which of the following situations will the change in potential energy be NON-ZERO?
the charge is only moved perpendicular to all electricfield lines that it crosses
the charge remains unmoved
the charge is moved along an equipotential surfa

A 1140nF capacitor with circular parallel plates 1.12cm in diameter is accumulating charge at the rate of 20.7mC/s at some instant in time. What will be the induced magnetic field strength 10.8cm radially outward from the center of the plates? What will be the value of the field strength after the capacitor is fully charged?