Fleming’s Left Hand Rule:
The direction of the force experienced by a current-carrying conductor placed in a magnetic field can be obtained from Fleming’s Left Hand Rule. It is also known as a motor rule which is as follows:
Statement: Stretching the thumb, the forefinger, and the middle finger of the left hand are mutually perpendicular to one another. If the fore finger points towards the direction of the magnetic field, the middle finger points towards the direction of the current, then the thumb give the direction of the force on the conductor.