Solution:Concept: The electromagnetic induction principle states that when a current carrying conductor is placed in a varying magnetic field, the changing flux induces electromotive force in the conductor, which produces an electric current.
A rectangular coil is between two powerful magnets in an electric motor. When an electric current is passed through this rectangular coil, a force acts on it, resulting in torque. This torque causes rotational motion in the coil, and the rectangular coil continues to rotate indefinitely until an electric current passes through it.
Hence, the correct option is 2 .