2. The figure shows two parallel nonconducting rings with their central axes along a common line. Ring 1 has uniform charge qi and radius R; ring 2 has uniform charge q2 and the same radius R. The rings are separated by distance d = 3R. The net electric field at point P in the common line, at distance R from ring 1, is zero. What is the ratio qı/q2? Ring 1 Ring 2 12 R -R- d

2. The figure shows two parallel nonconducting rings with their central axes along a common line. Ring 1 has uniform charge qi and radius R; ring 2 has uniform charge q2 and the same radius R. The rings are separated by distance d = 3R. The net electric field at point P in the common line, at distance R from ring 1, is zero. What is the ratio qı/q2? Ring 1 Ring 2 12 R -R- d

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 68P: (a) What is the electric field 5.00 m from die center of the terminal of a Van de Graaff with a...

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Three charged particles are arranged on corners of a square as shown in Figure OQ23.11, with charge Q on both the particle at the upper left corner and the particle at the lower right corner and with charge +2Q on the particle at the lower left corner. (i) What is the direction of the electric field at the upper right corner, which is a point in empty space? (a) It is upward and to the right. (b) It is straight to the right. (c) It is straight downward. (d) It is downward and to the left. (e) It is perpendicular to the plane of the picture and outward. (ii) Suppose the +2Q charge at the lower left corner is removed. Then does the magnitude of the field at the upper right corner (a) become larger, (b) become smaller, (c) stay the same, or (d) change unpredictably?
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