1. The drawing shows a positive point charge +qi, a second point charge q2 that may be positive or negative, and a spot labeled P, all on the same straight line. The distance d between the two charges is the same as the distance between qi and the spot P. With q2 present, the magnitude of the net electric field at P is twice what it is when qi is present alone. Given that qi= 0.50 μC, determine q2 when it is (a) positive and (b) negative. 92 9A 2. The drawing shows an equilateral triangle, each side of which has a length of 2.00 cm. Point charges are fixed to each corner, as shown. The 4.00 µC charge experiences a net force due to the charges qa and qs. This net force points vertically downward and has a magnitude of 405 N. Determine the magnitudes and algebraic signs of the charges qa and qв. d 30.0⁰ +4.00 C 1 13 13 F cos 30.0° (a) F F sin 30.0° 9B 3. A total positive charge Q is placed on a solid conducting sphere with radius r. Find the electric field at any point (a) inside and (b) outside the sphere. Gaussian sphere
1. The drawing shows a positive point charge +qi, a second point charge q2 that may be positive or negative, and a spot labeled P, all on the same straight line. The distance d between the two charges is the same as the distance between qi and the spot P. With q2 present, the magnitude of the net electric field at P is twice what it is when qi is present alone. Given that qi= 0.50 μC, determine q2 when it is (a) positive and (b) negative. 92 9A 2. The drawing shows an equilateral triangle, each side of which has a length of 2.00 cm. Point charges are fixed to each corner, as shown. The 4.00 µC charge experiences a net force due to the charges qa and qs. This net force points vertically downward and has a magnitude of 405 N. Determine the magnitudes and algebraic signs of the charges qa and qв. d 30.0⁰ +4.00 C 1 13 13 F cos 30.0° (a) F F sin 30.0° 9B 3. A total positive charge Q is placed on a solid conducting sphere with radius r. Find the electric field at any point (a) inside and (b) outside the sphere. Gaussian sphere
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter23: Electric Fields
Section: Chapter Questions
Problem 23.10OQ: Assume the charged objects in Figure OQ23.10 are fixed. Notice that there is no sight line from the...
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