Showing posts with label electromagnetism. Show all posts
Showing posts with label electromagnetism. Show all posts
Friday, January 25, 2008
Wednesday, January 23, 2008
Electromagnetism
Well today we worked on a sheet about right hand rules and also went over a magnetic field worksheet as well as other excersise questions.
Our test is tomorrow so here's a few things to remember.
First Right Hand Rule:
-Thumb points to the direction that the current flows.
-The other fingers point in the direction that the magnetic field circles in.
Second Right Hand Rule:
-This is used when you have an electromagnetic field.
- The iron core inside the coil increases the magnet's strength.
-The direction of the thumb points to the North pole of the magnet.
-The direction of the conventional current flow is indicated by the direction which the fingers curl.
Third Right Hand Rule:
-The thumb represents the direction of the current.
-The fingers represent the direction of the magnetic field.
- The direction of the force acting on the wire is represented by the direction of the palm.
Don't forget this equation:
B = f / IL
F is the force of the conductor in Newtons.
B is the magnitude of the magnetic field strength in Teslas.
I is the current in the conductor in amperes.
L is the length of the condutor in the magnetic field in metres.
Well that's it for me. Good luck on the test tomorrow and on the exam on Monday. Study diligently!
Good bye blog, good bye peers, see you next semester Ms. K!
Our test is tomorrow so here's a few things to remember.
First Right Hand Rule:
-Thumb points to the direction that the current flows.
-The other fingers point in the direction that the magnetic field circles in.
Second Right Hand Rule:
-This is used when you have an electromagnetic field.
- The iron core inside the coil increases the magnet's strength.
-The direction of the thumb points to the North pole of the magnet.
-The direction of the conventional current flow is indicated by the direction which the fingers curl.
Third Right Hand Rule:
-The thumb represents the direction of the current.
-The fingers represent the direction of the magnetic field.
- The direction of the force acting on the wire is represented by the direction of the palm.
Don't forget this equation:
B = f / IL
F is the force of the conductor in Newtons.
B is the magnitude of the magnetic field strength in Teslas.
I is the current in the conductor in amperes.
L is the length of the condutor in the magnetic field in metres.
Well that's it for me. Good luck on the test tomorrow and on the exam on Monday. Study diligently!
Good bye blog, good bye peers, see you next semester Ms. K!
Tuesday, January 22, 2008
Electromagnetism
Today in class we watched a DVD on magnetism and electromagnetism.
Then we went over the Chapter 36-1 answers and Electromagnetism Questions.
After that, we received two new sheets called Exercises and Magnetic Fields Worksheet.
Physics test on Thursday (magnetism and electromagnetism)
Remember, Physics Exam is on Monday, January 28th (afternoon from 1-3 pm)
Then we went over the Chapter 36-1 answers and Electromagnetism Questions.
After that, we received two new sheets called Exercises and Magnetic Fields Worksheet.
Physics test on Thursday (magnetism and electromagnetism)
Remember, Physics Exam is on Monday, January 28th (afternoon from 1-3 pm)
Friday, January 18, 2008
01/18/08 - Scribe Post
Today, in class, we were given a booklet. It has to do with the connection of electricity and magnetism. Some examples and diagrams were shown on the smart board. I think they will be uploaded to the blog for those of you who missed it. We learned this Hans Christian Oersted person and his contributions. Ms. K did some experiment where she wrapped a metal wire to a dry cell and to some machine. The dry cell became magnetic. That's about it.
The next scribe is EricT.
The next scribe is EricT.
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