how the direction of magnetic field at a point
be determined
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The right hand rule states that: todetermine the direction of themagnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.
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How is the direction of the magnetic field at a point determined?
An imaginary lines around a magnet called magnetic field lines.
The direction of magnetic field at a point is determined by placing a small compass needle.
The N-pole of compass indicate the direction of magnetic field at that point.
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