Question

Write Fleming's left hand rule.

Hint:

Fleming's Left Hand Rule = Thumb = Motion (Force), Index = Magnetic Field, Middle = Current. Use it for electric motors!

Answer 1

Fleming's Left Hand Rule is used to determine the direction of motion in a motor. It helps us understand the relationship between the magnetic field, the current, and the force experienced by a conductor placed in the magnetic field. According to Fleming's Left Hand Rule, if you hold your left hand with the thumb, index finger, and middle finger mutually perpendicular to each other, then:
1. Thumb represents the direction of the motion (force) of the conductor.
2. Index Finger represents the direction of the magnetic field (from north to south).
3. Middle Finger represents the direction of the current flowing through the conductor.
In other words, if the magnetic field is in the direction of the index finger and the current flows in the direction of the middle finger, then the thumb will point in the direction of the force (motion) on the conductor. This rule is applicable to electric motors where the conductor experiences a force when placed in a magnetic field.
Fleming's Left Hand Rule is based on the principle of Lorentz force, which states that a charged particle experiences a force when moving through a magnetic field. In the case of a current-carrying conductor, the charges (electrons) moving through the conductor interact with the magnetic field, producing a force that causes the conductor to move.