Simple right hand palm rule question

[scilearner]

Hello guys,

 

I know how to use the right hand palm rule. But I'm bit confused with the direction of the magnetic field.Let say current is into the page in a straight wire and then magnetic field is going on a circular loop and can be worked out accordingly with grip rule. But when I do the palm rule I don't know which way the magnetic field should be. There are so many places (I mean the which part of the circular loop that is perpendicular I choose.)Any help would be appreciated. Thanks!!

[swansont]

You have a formula of the form A X B = C. The thumb points in the direction of A, the next finger points in the direction of B, and the last finger (or palm) will point in the direction of C. Just do it in order.