Question

I get confused see they said in the direction of magnetic field line but how it's possible ​

Answer 1

look mate the magnetic field will attract the conductors towards it and your right thumb while being a conductor will get attracted and move towards that direction of the magnetic field

Answer 2

IT IS SAID THAT WHEN WE POINT OUR RIGHT HAND THUM IJ THE DIRECTION OF CURRENT FLOWING THEN IN THE DIRECTION IN WHICH OUR OTHER FINGERS ENCIRCLE IS THE DIRECTION IF THE MAGNETIC FIELD.