Fleming's Left-Hand Rule
. To work out the direction of force experienced we use
Fleming's Left Hand Rule. Your first finger points in the
direction of the magnetic field (North to South). Your second finger
points in the direction of conventional current (positive to
negative the Thumb
represents the direction of Motion resulting from the force on the
conductor The First
finger represents the direction of the magnetic Field The Second
finger represents the direction of the Current.
When a wire carrying an
electric current is moved in a magnetic field of a magnet the
magnetic field induced by the wire reacts with the magnetic field of the magnet
causing the wire to move outwards. Fleming's left hand rule helps you to
predict the movement
When electrons, or
any charged particles flow in the same direction (for example, as
an electric current in an electrical
conductor
such as a metal wire ) they
generate a cylindrical magnetic field that
wraps round the conductor
the direction of the
induced magnetic field is also sometimes remembered by the right-hand grip rule, as depicted
in the illustration, with the thumb showing the direction of the conventional
current, and the fingers showing the direction of the magnetic field. The
existence of this magnetic field can be confirmed by placing magnetic compasses
at various points round the periphery of an electrical conductor that is
carrying a relatively large electric current.
a magnet. The
iron filings move and arrange into the lines. The magnetic field is
the area around a magnet in which there is magnetic force.
Moving electric charges can make magnetic fields. Magnetic
fields can usually be seen by magnetic flux lines.
... The flux lines can be seen by placing iron filings over
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