Consider a circular ring of radius 3 cm carries a uniform charge Q = 20 µc. A point charge q = -8µc is brought from infinity and placed at the center of the ring. a. How much work was done by an external force on the charge q? b. For the ring and q at its center, find the electric potential at a point x = 4 cm from center and on the line perpendicular to the plane of the ring.

Consider a circular ring of radius 3 cm carries a uniform charge Q = 20 µc. A point charge q = -8µc is brought from infinity and placed at the center of the ring. a. How much work was done by an external force on the charge q? b. For the ring and q at its center, find the electric potential at a point x = 4 cm from center and on the line perpendicular to the plane of the ring.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter26: Electric Potential

Section: Chapter Questions

Problem 40PQ: A uniformly charged ring with total charge q = 3.00 C and radius R = 10.0 cm is placed with its...

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