Physics-Electro magnetism-force on a current carrying wire placed in magnetic field by Flemings rule

force on a current carrying wire placed in a magnetic field by flemings left hand rule:
in this video I have explained how to apply flims left hand rule when a current carrying wire is placed in a magnetic field but is the direction of current what is the direction of magnetic force and what is the direction of magnetic field when we apply flame is left hand rule we have to place over left hand in such a way that it should be pointing towards south I mean in the direction of magnetic field then stretch your three fingers I mean index finger middle finger and thumb and writ angle to each other then keep your index finger in the direction of south and rotate your arm not the hands to get the direction of current by your second finger automatic the direction of force that is acting on that wire so direction of force can be reverse when you reverse the direction of current in the wire force can be reverse when you reverse the direction of magnetic field but if you will reverse both of them there would be no change in the direction of magnetic force.