Magnetic needle

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  • Thread starter ENE
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  • #1
ENE
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Main Question or Discussion Point

Hello,
How to perform and know north south from magnetic needle compass??
as in this picture it show North + south = south + north
so, how to find earth direction??
 

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Answers and Replies

  • #2
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Welcome to PF.

The picture you attached says "compass points north". That is the answer.

Are you confused that the point of the needle is the magnets S pole? Ignore that. N attracts S, so we make the S end of the compass needle look like an arrow that points N.
 
  • #3
ENE
42
2
ok, thanks.
How to do experiment Stewarttangent galvanometer?
 
  • #4
8,273
5,109
ok, thanks.
How to do experiment Stewarttangent galvanometer?

That video you posted explains pretty well, so please be more specific with your question.
 
  • #5
ENE
42
2
I mean what is the application of this experiment ?
is to find magnetic field by coil it self??
 
  • #6
8,273
5,109
I mean what is the application of this experiment ?
is to find magnetic field by coil it self??
That is clearly explained in the video. It demonstrates the "principle" explained in the video and the "applications" explained in the video.
 
  • #7
ENE
42
2
Hello,
At 4:12 time it say the deflection is between 30 and 60 how?
at rest it was 0 degree initial.
so, deflection should be in 0-30 or 0-60??
 
Last edited:

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