What happens to a current carrying wire when placed in a magnetic field?

Hendrik Lorentz found that a charge moving in a magnetic
field, in a direction other than the direction of the magnetic field, experiences a
force. It is called Lorentz Force. Since current is due to the motion of charge,
therefore a conductor carrying moving charges (or current) places in a magnetic field,
in direction other than the direction of magnetic field, will also experience a
force.

The direction of force on a current carrying
conductor placed in a magnetic field is obtained by Fleming's
left hand
rule.

Fleming's
left hand rule: Stretch the forefinger, middle finger and the thum of
your left hand mutually perpendicular to each other. If the forefinger indicates the the
direction of the magnetic field and the middle finger indicates the direction of flow of
current, then the thumb will indicate the direction of motion of
conductor.

If the conductor is free to move, it will start
moving in the direction of the force.

Thus,
if a current carrying conductor is placed in a magnetic field, it
experiences the Lorentz force (unless the angle between the flow of
current and magnetc lines is 0°).

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