Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Chapter 20.4, Problem 20.4GI
Far from a charge distribution, you measure an electric field strength of 800 N/C. What will the field strength be if you double your distance from the charge distribution, if the distribution consists of (1) a point charge or (2) a dipole?
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A point charge q1=8.0 nC is at the origin and another point charge q2=12.0 nC is on the x-axis at x=4.0 m. Find the electric field at (x=0, y=3.0 m). Express all numerical values in THREE significant figures.
Calculate the electric field component due to each point charge. Fill out the table below. Express all numerical values in THREE significant figures. Do not forget to include the sign if the value is negative.
Ex(N/C)
Ey(N/C)
electric field due to charge 1 E1
electric field due to charge 2 E2
net electric field
From the components of the net electric field, we can calculate its magnitude using Pythagorean theorem. Thus the value of the net electric field magnitude is _____________.
A point charge q1 =8.0 nC is at the origin and another point charge q2 = 12.0 nC is on the x-axis at X= 4.0 m. Find the electric field at
(x=0, y=3.0 m). Express all numerical values in three significant figures.
Calculate the electric field component due to each point charge. Fill out the table below. Express all numerical values in three significant figures. Do
not forget to include the sign if the value is negative.
E, (N/c)
Ey (N/C)
electric field due to charge 1 E1
[e1x]
[e1y]
electric field due to charge 2 E2
[e2x]
[e2y)
net electric field
[ex]
[ey)
From the components of the net electric field, we can calculate its magnitude using Pythagorean theorem. Thus the value of the net electric field
magnitude is
ΣΕ-lemag /
N/C
A point charge q1 =8.0 nC is at the origin and another point charge q2 =12.0 nC is on the x-axis at x=4.0 m. Find the electric field at
(x=0,y=3.0 m). Express all numerical values in three significant figures.
Calculate the electric field component due to each point charge. Fill out the table below. Express all numerical values in three significant figures. Do not forget to
include the sign if the value is negative.
Ex (N/c)
Ey (N/c)
electric field due to charge 1 E,
electric field due to charge 2 E,
net electric field
From the components of the net electric field, we can calculate its magnitude using Pythagorean theorem. Thus the value of the net electric field magnitude is
ΙΣΕ-
N/c
Chapter 20 Solutions
Essential University Physics (3rd Edition)
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