Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 21, Problem 73P
(a)
To determine
The magnitude of the charge
(b)
To determine
Thelocation where the electric field is zero.
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A +7.00µC point charge and −9.00µC point charge are placed along the x-axis at x = 0.000 m andx = 40.0 m, respectively. Where must a third charge, q, be placed along the x-axis so that it doesnot experience any net electric force due to the other two charges?
Three point charges are located at the corners of an equilateral triangle of side 20.0 cm. The charges at the base of the triangle are -4.00 nC (lower left) and -5.00 nC (lower right). The charge at the apex of the triangle is 3.00 nC.
(a) Find the magnitude and direction of the force on the charge at the apex.
(b) Find the electric field at the location of the charge at the apex of the triangle.
(c) Calculate the potential energy of the system of three charges.
(d) How much work was done in assembling the three charges?
(e) Find the electric potential at the apex point of the triangle (without the charge present).
(f) With the apex charge present, what is the electric potential at the centre of the triangle?
Point charge 3.5 μCμC is located at xx = 0, yy = 0.30 mm, point charge -3.5 μCμC is located at xx = 0 yy = -0.30 mm. What are (a)the magnitude and (b)direction of the total electric force that these charges exert on a third point charge QQQ = 5.0 μCμC at xx = 0.40 mm, yy = 0?
Chapter 21 Solutions
Physics for Scientists and Engineers
Ch. 21 - Prob. 1PCh. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10P
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