Calculate 1/r and then complete the table. Next make a graph where Force is on the y-axis and 1/r is on the x-axis. To plot the graph use Excel or Google Sheets, whichever you prefer. 11. What is the slope (m from y = mx+b) of your graph? (Graph settings → click show best fit line) 12. What is the experimental value of k? (From the formula sheet) 13. Find the % error of your result. measured- real Percent Error = x100% real

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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the graph corresponds with 11-13 please help im struggling
The Coulomb Constant
The goal of this experiment is to measure k. We could do this hypothetically by attaching a
force senor to two large spheres. Each sphere will have a fixed charge on them; however, the second charge will
be mounted in place while the first charge can be moved. If we measure the distance between these two spheres
and the force between them, we should be able to determine the constant, k. The apparatus will look something
like this:
Force Sensor
42
Suppose that you do this experiment in the lab with q1= 5 µC and q2= 3 µC and you find the
following data (where cN is centi-Newtons = 10-2 N):
r (m)
F (cN) 12.48
1
2
4
7
10
Su
4.75
1.42
2.43
1.66
0.69
0.55
0.48
0.395
0.38
ex
m
1/r
Calculate 1/r and then complete the table.
Next make a graph where Force is on the y-axis and 1/r is on the x-axis. To plot the graph use Excel or Google
Sheets, whichever you prefer.
11. What is the slope (m from y = mx+b) of your graph? (Graph settings → click show best fit line)
12. What
the experimental value of k? (From the formula sheet)
13. Find the % error of your result.
measured- real
Percent Error =
x100%
real
Transcribed Image Text:The Coulomb Constant The goal of this experiment is to measure k. We could do this hypothetically by attaching a force senor to two large spheres. Each sphere will have a fixed charge on them; however, the second charge will be mounted in place while the first charge can be moved. If we measure the distance between these two spheres and the force between them, we should be able to determine the constant, k. The apparatus will look something like this: Force Sensor 42 Suppose that you do this experiment in the lab with q1= 5 µC and q2= 3 µC and you find the following data (where cN is centi-Newtons = 10-2 N): r (m) F (cN) 12.48 1 2 4 7 10 Su 4.75 1.42 2.43 1.66 0.69 0.55 0.48 0.395 0.38 ex m 1/r Calculate 1/r and then complete the table. Next make a graph where Force is on the y-axis and 1/r is on the x-axis. To plot the graph use Excel or Google Sheets, whichever you prefer. 11. What is the slope (m from y = mx+b) of your graph? (Graph settings → click show best fit line) 12. What the experimental value of k? (From the formula sheet) 13. Find the % error of your result. measured- real Percent Error = x100% real
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