Fleming's left-hand rule
A mnemonic for the direction of force on a current-carrying conductor in a magnetic field, used in electromagnetism. Often taught alongside 右手の法則 (right-hand rule).
See also: フレミングの法則
Using the left-hand rule, you can determine the direction of the force from the current and magnetic field.
The right-hand rule is used for generators (induced current), while the left-hand rule is for motors (force on a current).
Fleming's rules encompass both the left-hand rule (for motors) and the right-hand rule (for generators).
Named after John Ambrose Fleming, who introduced the mnemonic. The Japanese term is a direct translation of 'left-hand rule'.