Detecting a Magnetic Field: Difference between revisions
Ejohnston8 (talk | contribs) No edit summary |
Ejohnston8 (talk | contribs) No edit summary |
||
| Line 3: | Line 3: | ||
==The Main Idea== | ==The Main Idea== | ||
A compass can be used to determine the magnetic field in a wire. If a compass is not in the proximity of any iron or steel object, the compass will naturally point in the direction of the Earth's magnetic north pole. If a current carrying wire is brought near the compass, the compass needle will deflect. | |||
===A Mathematical Model=== | ===A Mathematical Model=== | ||
A useful attribute of a compass is that you can calculate the the magnetic field of current carrying wire when you figure out the deflection angle. This equation is: <math>B_{wire}=B_{earth} tan(\theta)</math> where <math>\theta</math> is the deflection angle, <math>B_{earth}</math> is the earth's magnetic field which is a constant value of 2e-5. | A useful attribute of a compass is that you can calculate the the magnetic field of current carrying wire when you figure out the deflection angle. This equation is: <math>B_{wire}=B_{earth} tan(\theta)</math> where <math>\theta</math> is the deflection angle, <math>B_{earth}</math> is the earth's magnetic field which is a constant value of 2e-5 Tesla. | ||
===A Computational Model=== | ===A Computational Model=== | ||
Revision as of 22:11, 10 November 2015
Short Description of Topic
The Main Idea
A compass can be used to determine the magnetic field in a wire. If a compass is not in the proximity of any iron or steel object, the compass will naturally point in the direction of the Earth's magnetic north pole. If a current carrying wire is brought near the compass, the compass needle will deflect.
A Mathematical Model
A useful attribute of a compass is that you can calculate the the magnetic field of current carrying wire when you figure out the deflection angle. This equation is: [math]\displaystyle{ B_{wire}=B_{earth} tan(\theta) }[/math] where [math]\displaystyle{ \theta }[/math] is the deflection angle, [math]\displaystyle{ B_{earth} }[/math] is the earth's magnetic field which is a constant value of 2e-5 Tesla.
A Computational Model
How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript
Examples
Be sure to show all steps in your solution and include diagrams whenever possible
Simple
Middling
Difficult
Connectedness
- How is this topic connected to something that you are interested in?
- How is it connected to your major?
- Is there an interesting industrial application?
History
Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.
See also
Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?
Further reading
Books, Articles or other print media on this topic
External links
Internet resources on this topic
References
This section contains the the references you used while writing this page