Answer / nirbhay

A linear motor is essentially a multi-phase alternating
current (AC) electric motor that has had its
stator "unrolled" so that instead of producing a torque
(rotation) it produces a linear force along its length. The
most common mode of operation is as a Lorenz-type actuator,
in which the applied force is linearly proportional to the
current and the magnetic field (F = i × B).

Answer / dolphin

nirbhay's answer is absolutely correct. the jet
trains in japan which can accelerate their speed
upto 500km per hour
are the best examples of linear motor. here the
train acts as a linear rotor which is excited with
3 phase supply and the rails act as a unrolled
stator which contains short circuited cross bars.

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