In the diagram below, what do the three numbered vectors represent?

Explanation:
The right hand rule is used to find the magnetic force acting on a charged particle in the magnetic field. The magnetic force is given by :
[tex]F=IBL\ sin\theta[/tex]
Where
I is the current
B is the magnetic field
In this type of rule, the magnetic field, the electric current and the force are mutually perpendicular to each other.
In the given figure,
Vector 1 represent the magnetic field
Vector 2 represents the electric current
Vector 3 represents the force