Question

State the rule which gives the direction of force acting on a current-carrying conductor placed in a magnetic field.

Answer 1

The rule used to determine the direction of the force acting on a current-carrying conductor in a magnetic field is Fleming’s left-hand rule. According to this rule, stretch the thumb, forefinger and middle finger of your left hand such that they are mutually perpendicular. If the first finger points in the direction of the magnetic field and the second finger in the direction of the current, then the thumb will point in the direction of motion or the force acting on the conductor.