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Mspike6
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I got this question on an Assigment, and ..man, am having really hard time with it
Here is how it start :
"A student used the apparatus shown below to measure the radius of the curvature of the path of electrons as they pass through a magnetic field that is perpendicular to their path. This experimental design has the voltage as the manipulated variable, the speed calculated from the voltage, and the radius as the responding variable.
Accelerating Potential Difference (V) |Speed (106 m/s)| Radius (10-2 m)
20.0 | 2.65 | 7.2
40.0 | 3.75 | 9.1
60.0 | 4.59 | 11.0
80.0 | 5.30 | 12.8
100.0 | 5.93 | 14.1
120.0 | 6.49 | 16.3
A. Plot the graph of radius as a function of speed, and construct a best-fit line.
B. Using the slope or other appropriate averaging technique, determine the strength of the magnetic field.
C. Derive the equation that would allow you to calculate the speed of the electrons from the accelerating potential.
Am so sorry for the lack of my Solutions, but am really having troubles with this unit (Electromagntic)
if anyone know a tutorial or a website that explained this unit in easy and simple way, please include it in your answer... i need all the help i can get for this unit.
any help is really appreciated guys, thank you
Here is how it start :
"A student used the apparatus shown below to measure the radius of the curvature of the path of electrons as they pass through a magnetic field that is perpendicular to their path. This experimental design has the voltage as the manipulated variable, the speed calculated from the voltage, and the radius as the responding variable.
Accelerating Potential Difference (V) |Speed (106 m/s)| Radius (10-2 m)
20.0 | 2.65 | 7.2
40.0 | 3.75 | 9.1
60.0 | 4.59 | 11.0
80.0 | 5.30 | 12.8
100.0 | 5.93 | 14.1
120.0 | 6.49 | 16.3
A. Plot the graph of radius as a function of speed, and construct a best-fit line.
Solution:
I Drew the Graph, and it came out to be Semi liner...ther is a slight curve towards the end
B. Using the slope or other appropriate averaging technique, determine the strength of the magnetic field.
Solution:
am not sure what he means by "Using the slope" but is the slop of that curve is the Strength of magnetic field (B) ?
does that mean that i can take the slope between any 2 points and get the Strength of the magntic field ?
C. Derive the equation that would allow you to calculate the speed of the electrons from the accelerating potential.
Soultion:
sorry but i didn;t even Understand the question
Am so sorry for the lack of my Solutions, but am really having troubles with this unit (Electromagntic)
if anyone know a tutorial or a website that explained this unit in easy and simple way, please include it in your answer... i need all the help i can get for this unit.
any help is really appreciated guys, thank you