Question

When a conductor carrying an electric current is free to move in a magnetic field, the direction in which it will move is given by:

• A. Cork-screw rule
• B. Fleming's Left Hand rule
• C. Laplace's rule
• D. Swimming rule

Answer 1

The correct option is B Fleming's Left Hand rule

When current flows in a wire, and an external magnetic field is applied across that flow, the wire experiences a force perpendicular, to that field and to the direction of the current flow. Considering the figure, Fleming's left hand rule states that :

• The thumb represents the direction of the thrust on the conductor / Motion of the Conductor.
• The fore finger represents the direction of the magnetic field
• The middle finger represents the direction of the current.