A charge of + 30 nC is distributed uniformly along the circumference of a circle with a radius of 15 cm. How much external energy is required to bring a charge of + 30 mC from infinity to the center of the circle?

A charge of + 30 nC is distributed uniformly along the circumference of a circle with a radius of 15 cm. How much external energy is required to bring a charge of + 30 mC from infinity to the center of the circle?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter19: Electric Potential And Electric Field

Section: Chapter Questions

Problem 26PE: (a) A sphere has a surface uniformly charged with 1.00 C. At what distance from its center is the...

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A charge of + 30 nC is distributed uniformly along the circumference of a circle with a radius of 15 cm. How much external energy is required to bring
a charge of + 30 mC from infinity to the center of the circle?
A. 36 J
B. 54 J
C. 1.8 J
D. 360 J
E. 540 J

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