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1. An insulating disk with radius R carries uniformly distributed positive charge. A point charge Q with mass m is held in place on the axis of the disk distance d from its center. The net electric field is zero at the midpoint between the point charge and the disk. a) Find a symbolic expression for the surface charge density of the disk, o, in terms of Q, R, d, and any necessary constants. (You do not need to derive the electric field of a disk. See

1. An insulating disk with radius R carries uniformly distributed positive charge. A point charge Q with mass m is held in place on the axis of the disk distance d from its center. The net electric field is zero at the midpoint between the point charge and the disk. a) Find a symbolic expression for the surface charge density of the disk, o, in terms of Q, R, d, and any necessary constants. (You do not need to derive the electric field of a disk. See

College Physics
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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1. An insulating disk with radius R carries uniformly distributed positive charge. A point charge Q with mass m is held in place on the axis of the disk distance d from its center. The net electric field is zero at the midpoint between the point charge and the disk. a) Find a symbolic expression for the surface charge density of the disk, o, in terms of Q, R, d, and any necessary constants. (You do not need to derive the electric field of a disk. See equation sheet.) b) If the point charge Q is now released from rest, what would its kinetic energy be when it is distance 2d away from the disk? You can ignore gravity force. Your answer should be in terms of o, Q, R, d, and any necessary constants. Q
Transcribed Image Text:1. An insulating disk with radius R carries uniformly distributed positive charge. A point charge Q with mass m is held in place on the axis of the disk distance d from its center. The net electric field is zero at the midpoint between the point charge and the disk. a) Find a symbolic expression for the surface charge density of the disk, o, in terms of Q, R, d, and any necessary constants. (You do not need to derive the electric field of a disk. See equation sheet.) b) If the point charge Q is now released from rest, what would its kinetic energy be when it is distance 2d away from the disk? You can ignore gravity force. Your answer should be in terms of o, Q, R, d, and any necessary constants. Q
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