PHYS122 Lab Report 8 FINAL
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University of Maryland *
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Course
122
Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
docx
Pages
3
Uploaded by isamahdiusa
Experiment 8
Magnetic Force between Currents
Danielle Panambo and Aissa Ouldbrahim
May 2, 2019
0301
Purpose
The purpose of this experiment is to examine the magnetic field produced by a current
through wires as well as the magnetic forces it produces.
Data and Analysis
intercept
int. uncertainty
slope
slope
uncertainty
sum c
2
s
δμ
-0.00096
0.001017
5.66E-05
2.55E-05
0.077379
5.664E-07
Table 1. Calculated Values
Fg
(N)
δFg
(N)
I
2
(A)
δI
2
(A)
.00049
0.00049
25.5025
.0505
.00098
0.00049
35.8801
.0599
.00147
0.00049
41.2164
.0642
.00196
0.00049
52.1284
.00196
The force of gravity for each mass was calculated by multiplying each mass value with the acceleration
of gravity, 9.8 m/s
2
. These values were listed in the independent variable column. The corresponding currents
for each weight were also squared and listed in the dependent variable column.
Sources of Uncertainty
One of the possible sources of uncertainty for the lab experiment is the true length of the
wire. The measured length could affect the calculation of the slope with equation 5. The
multimeter could also be 0.01 ampere off when measuring the current. The platform may have
also not been in complete equilibrium and would have skewed the displacement of the laser
point.
Conclusion
The slope of our graph is 5.66E-05 . The y-intercept is -0.00096 N.
Our calculated
μ
0
is
1.257 * 10
-6
N/A
2
. The
δμ
0
is 5.664E-07 N/A
2
. These values are not close to the actual
μ
0
value of
* 10
4?
-7
N/A
2
. Our origin value does lie within the uncertainty.
The calculated value for µ0 is not statistically consistent with the actual value.
Additionally, the y-intercept from our fit is in fact statistically consistent with zero
.
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