Fleming’s Left-Hand Rule (Motor Rule)
Fleming Provided two rules: one for motors and one for generators.
This rule is used for determination of the force’s direction on a conductor through which current passes, positioned within a magnetic field. Its primary utility lies in comprehending the functioning of electric motors.
Thumb: Align your thumb with the Force’s (F) direction on the conductor.
First Finger: Indicate the direction of the Magnetic Field (B) using your first finger.
Second Finger: By holding your thumb and first finger at a right angle, the second finger indicates the Current’s (I) direction flowing through the conductor.
Mathematically, the force can be computed using the formula:
F = BIL
F: Force experienced by the conductor (measured in Newtons)
B: Strength of the magnetic field (measured in Tesla)
I: Current passing through the conductor (measured in Amperes)
L: Length of the conductor within the magnetic field (measured in meters)
Fleming’s Left Hand Rule and Fleming’s Right Hand Rule
Fleming’s Left-Hand Rule and Fleming’s Right-Hand Rule are principles employed to ascertain the force’s orientation experienced by a conductor carrying electric current when exposed to a magnetic field. These rules were provided by John Ambrose Fleming and form the basics of electromagnetism. Their primary purpose is to predict the direction of the force acting on a conductor in relation to the magnetic field and the current’s flow.