Question

State the rule which gives the direction of force acting on the conductor.

Answer 1

Fleming's left-hand rule.
Stretch the thumb, forefinger and middle finger of your left-hand such that they are mutually perpendicular to one another. If the forefinger points in the direction of magnetic field and the middle finger in the direction of a current, then the thumb will point in the direction of motion or the force acting on the conductor.