Question

How is right hand thumb rule used to find direction of magnetic field?

Answer 1

The right-hand rule is based on the underlying physics that relates magnetic fields and the forces that they exert on moving charges—it just represents an easy way for physicists to remember the directions that things are supposed to point.

Answer 2

HEYA MATE HERE U GO

when you hold a wire carrying current in the right hand such that the thumb points in the direction of current then the folded fingers points to the presence of magnetic fields lines the greater and lesser the radius of the fold weaker and stronger field respectively are indicated

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