Question

Write the name and statement of the rule used to determine the direction of the force experienced by a straight current-carrying conductor placed in a uniform magnetic field perpendicular to the field.

Answer 1

Name of the rule: Fleming’s Left-Hand Rule

Statement: Stretch the thumb, forefinger, and middle finger of the left hand so that they are mutually perpendicular.

• The forefinger points in the direction of the magnetic field.
• The middle finger points in the direction of the current.
• Then the thumb directs the force (or motion) acting on the conductor.