Magnetism: I Need Help Understanding the Hand Rule!

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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!
 
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Err, your thumb points in the direction of positive current, and your fingers curl in the direction of the magnetic field.
 
what about finding the direction of induced current?
 
Whatever change in magnetic flux there is, the induced current will make a magnetic field to counter that change in flux.
 
i mean using the hand rule...how do i do it?
 
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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