7. Two thin non-conducting rings with uniform charge densities of 21 and 22 are placed as shown. If the radii of rings are d and 3d, and the net electric potential at point P, which lies along the central axis of the rings, is zero (Vp = 0), find the ratio of 1,/ 2. 2d 2d V5 Answer: 3 3d

7. Two thin non-conducting rings with uniform charge densities of 21 and 22 are placed as shown. If the radii of rings are d and 3d, and the net electric potential at point P, which lies along the central axis of the rings, is zero (Vp = 0), find the ratio of 1,/ 2. 2d 2d V5 Answer: 3 3d

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: Electric Potential And Capacitance

Section: Chapter Questions

Problem 32P

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Concept explainers

Dielectric Constant Of Water

Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.

Question

↑P
7.
Two thin non-conducting rings with uniform charge densities of å1
and 22 are placed as shown. If the radii of rings are d and 3d, and the net electric
potential at point P, which lies along the central axis of the rings, is zero (Vp =
0), find the ratio of 21/ 2.
2d
2d
V5
Answer: –
3
3d

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