(II) At each corner of a square of side l there are pointcharges of magnitude Q, 2Q, 3Q, and4Q (Fig. 16–54). Determine the mag-20nitude and direction of the force onthe charge 2Q.FIGURE 16–54Problem 15.4Q

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Answered: (II) At each corner of a square of side…

University Physics Volume 2

18th Edition

ISBN:9781938168161

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Chapter5: Electric Charges And Fields

Section: Chapter Questions

Problem 80P: A thin conducting plate 1.0 m on the side is given a charge of 2.0106C . An electron is placed 1.0...

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(II) A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 21-g spheres at the ends. When charged, nearly all the charge resides on the spheres. If the wires each make a 26° angle with the vertical (Fig. 16–55), what total charge Q must have been applied to the electroscope? Ignore the mass of the wires. 26°126 78 cm 78 cm FIGURE 16–55 Problem 16.
(II) Determine the direction and magnitude of the electric field at the point P in Fig. 16–56. The charges are separated by a distance 2a, and point P is a distance x from the midpoint between the two charges. Express your answer in terms of Q, x, a, and k. +Q а -Q FIGURE 16–56 Problem 31.
Determine the direction and magnitude of the electric field at point P, Fig. 16–69. The two charges are separated by a dis- tance of 2a. Point Pis on the perpendicular bisector of the line joining the charges, a distance x from the midpoint between them. Express your answers in terms of Q, x, a, and k. +Q FIGURE 16–69 a -Q Problem 66.
Consider the electric field at the three points indicated by the letters A, B, and C in Fig. 16–49. First draw an arrow at each point indicating the direction of the net force that a positive test charge would experience if placed at that point, then list the letters in order of decreasing field strength (strongest first). Explain. B, FIGURE 16–49 Question 17.
(II) A charge of 6.15 mC is placed at each corner of a square0.100 m on a side. Determine the magnitude and directionof the force on each charge.
(II) You are given two unknown point charges, Q1 and Q2 . At a point on the line joining them, one-third of the way from Q to Q2 , the electric field is zero (Fig. 16–59). What is the ratio Q1/Q2? E= 0 Qi 3 Q2 FIGURE 16–59 Problem 34. l-

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University Physics Volume 2

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ISBN:

9781938168161

Author:

OpenStax

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OpenStax

University Physics Volume 2

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ISBN:

9781938168161

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OpenStax

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OpenStax

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(II) At each corner of a square of side l there are point charges of magnitude Q, 2Q, 3Q, and 4Q (Fig. 16–54). Determine the mag- 20 nitude and direction of the force on the charge 2Q. FIGURE 16–54 Problem 15. 4Q