During development and analysis of electrical machines, the electromagnetic field simulation software is used to their design and performance study. Ansys Maxwell, transient solver, is related with serial solution steps to determine machine currents, slot orifice width effect, material saturation and instantaneous rotor position. In this paper, Ansys Maxwell software is employed to design the Linear Induction Motor (LIM) using four types of slot orifice width. Flux density in the air gap with its harmonic analyzed by Fast Fourier Transform (FFT) are simulated. The performance of the mentioned LIM is investigated and compared with each other for the types used, which include the three –phase stator current and force develop