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 magnetic
field and the second finger in the direction of current, then the thumb will point in the direction of
motion or the force acting on the conductor.
Did you know that in a magnetic field, a current-carrying conductor would meet force? It is known as electromagnetic force, or emf. This trait is important to all modern electric motors and generators. So we know there's a force operating on the current-carrying conductor, but how do we know which direction it's pulling? If only a simple process could be applied in almost every situation. Fleming left hand rule will suffice.
ReplyDeleteSimilarly, when a conductor is activated in a magnetic field, an induced current is present. Power direction may be easily found by applying Fleming Right hand rule.