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Magnetism Help

  • Thread starter St@rbury
  • Start date
29
0
Magnetism!!! Help!!!

can someone please explain the hand rule thing to me....i am dead lost when teacher is explaining it. All i know is that your thumb is N and the bottom of your hand is S...please help!!!
 

Answers and Replies

458
0
Err, your thumb points in the direction of positive current, and your fingers curl in the direction of the magnetic field.
 
29
0
what about finding the direction of induced current?
 
458
0
Whatever change in magnetic flux there is, the induced current will make a magnetic field to counter that change in flux.
 
29
0
i mean using the hand rule...how do i do it?
 
458
0
Curl your fingers around a wire and point your thumb in the direction of current. Then curl your fingers around the wire in a way that you're opposing the change in flux. Your thumb will be in the direction of the induced current.
 

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