21.82 • CP A small sphere with mass m carries a positive charge q and is attached to one end of a silk fiber of length L. The other end of the fiber is attached to a large vertical insulating sheet that has a positive surface charge density . Show that when the sphere is in equilibrium, the fiber makes an angle equal to arctan (aơ/2mgeo) with the vertical sheet.

21.82 • CP A small sphere with mass m carries a positive charge q and is attached to one end of a silk fiber of length L. The other end of the fiber is attached to a large vertical insulating sheet that has a positive surface charge density . Show that when the sphere is in equilibrium, the fiber makes an angle equal to arctan (aơ/2mgeo) with the vertical sheet.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

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Problem:
In problem 21.82 of your book, University Physics 15th edition (see End of the Chapter 12 section), what is the
tension on the silk fiber?
Answer:
T =
sin(

21.82 • CP A small sphere with mass m carries a positive charge q and
is attached to one end of a silk fiber of length L. The other end of the fiber
is attached to a large vertical insulating sheet that has a positive surface
charge density o. Show that when the sphere is in equilibrium, the fiber
makes an angle equal to arctan (go/2mgeo) with the vertical sheet.

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