EP PHYSICS: PRIN.APP.AP-MOD.MASTERING
7th Edition
ISBN: 9780137453276
Author: GIANCOLI
Publisher: SAVVAS L
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Chapter 16, Problem 57GP
A point charge (m = 1.0 gram) at the end of an insulating cord of length 55 cm is observed to be in equilibrium in a uniform horizontal electric field of 9500 N/C, when the pendulum's position is as shown in Fig. 16—66 with the charge 12 cm above the lowest (vertical) position. If the field points to the right in Fig. 16—66 determine the magnitude and sign of the point charge.
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A point charge (m = 1.0 gram) at the end of an insulating
cord of length 55 cm is observed to be in equilibrium in a
uniform horizontal electric field of 9500 N/C, when the
pendulum's position is as shown in Fig. 16–66, with the
charge 12 cm above the lowest
(vertical) position. If the field
points to the right in Fig. 16–66,
determine the magnitude and
sign of the point charge.
l = 55 cm
m
-12 cm
FIGURE 16-66
Problem 57.
A point charge of mass 0.185 kg, and net charge +0.340 µC,
hangs at rest at the end of an insulating cord above a large
sheet of charge. The horizontal sheet of fixed uniform charge
creates a uniform vertical electric field in the vicinity of
the point charge. The tension in the cord is measured to be
5.18 N. Calculate the magnitude and direction of the electric
field due to the sheet of charge (Fig. 16–67).
Q=0.340 µC
m=0.185 kg
Uniform sheet of charge
FIGURE 16-67 Problem 61.
100
Given the two charges shown in Fig. 16–68, at what posi-
tion(s) x is the electric field zero?
Õ+
-Q/2
FIGURE 16-68
Problem 63.
Chapter 16 Solutions
EP PHYSICS: PRIN.APP.AP-MOD.MASTERING
Ch. 16 - Prob. 1OQCh. 16 - If you charge a pocket comb by rubbing it with a...Ch. 16 - Why does a shirt or blouse taken from a clothes...Ch. 16 - Explain why fog or rain droplets tend to form...Ch. 16 - Why does a plastic ruler that has been rubbed with...Ch. 16 - A positively charged rod is brought close to a...Ch. 16 - Prob. 6QCh. 16 - Figures 16-7 and 16-8 show how a charged rod...Ch. 16 - Prob. 8QCh. 16 - Prob. 9Q
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