Question

State differences between Fleming's Left- Hand Rule and Fleming's Right-Hand Rule.

Answer 1

Fleming's Right-hand Rule (for generators) shows the direction of induced current when a conductor attached to a circuit moves in a magnetic field. ... The right handis held with the thumb, index finger and middle finger mutually perpendicular to each other (at right angles),

• The thumb is pointed in the direction of the motion of the conductor relative to the magnetic field.
• The index finger is pointed in the direction of the magnetic field. (north to south)
• Then the middle finger represents the direction of the induced or generated current within the conductor (from the terminal with lower electric potential to the terminal with higher electric potential, as in a voltage source)

In Fleming;s Left-hand rule, the forefinger points in the direction of the magnetic field. The middle finger points in the direction of the current. The thumb gives the direction of force or motion acting on the conductor. All 3 are at right angles to each other. It is used in electric motors which are used in fans, mixers, printers, etc.