Lesson: The Electric Field of a Line of ChargePhysics
In this lesson, we will learn how to calculate the electric field around a uniform linear charge distribution that is modeled as a set of line segments.
Sample Question Videos
A long, straight wire has a uniform linear charge density of C/m. Calculate the magnitude of the electric field strength at a perpendicular distance of 2.0 m from the axis of the wire.
A very long, thin wire has a uniform linear charge density of 50 µC/m. What is the magnitude of the electric field 2.0 cm from the axis of the wire?
A long cylinder of aluminum of radius 0.25 meters is charged so that it has a uniform charge per unit length on its surface of C/m. A point is located along a line normal to the cylinder’s axis, 0.15 m from the axis.
What is the magnitude of the electric field at point ?
What is the electric potential at point ?