The normal clockwise direction of the motor that the rotor is powering can be manipulated by using the magnets and magnetic fields installed in the design of the rotor, allowing the motor to run in reverse or counterclockwise. The rotating magnetic field induces a voltage in the rotor bars as it passes over them. This equation applies to induced voltage in the rotor bars. where:  A torque is produced by the force produced through the interactions of the magnetic field and current as expressed by the given: "Ibid"  where:  A stator magnetic field rotates at synchronous speed, formula_13 "Ibid"  where:  If formula_17= rotor speed, the slip, S for an induction motor is expressed as:  mechanical speed of rotor, in terms of slip and synchronous speed:  Relative speed of slip: