Lesson: Electric Potential of a Ring of ChargePhysics
In this lesson, we will learn how to calculate the absolute electric potential at a given displacement from a ring of charge.
Sample Question Videos
A uniformly charged ring of radius 10 cm is placed on a nonconducting table. It is found that, 3.0 cm above the centroid of the ring, the potential is V, taking zero potential to be at infinity. How much charge is contained in the ring?
A rod bent into the arc of a circle of radius 0.500 m subtends an angle at the center of the circle as shown. Each equals . If the rod is charged uniformly with a total density 0.033 C/m, what is the magnitude of the electric field at ?