Motors can be found almost anywhere. Here, fundamentals of electric motors, as well as the various types available and how to select the suitable motor are discussed. The basic issues to address when determining which motor is best for a given application are which type to select and which specifications are important. How do motors work? Electric motors generate motion by transferring electrical energy to mechanical energy. The interaction of a magnetic field and winding alternating (AC) or direct (DC) current generates force within the motor. The magnetic field becomes stronger as the current strength increases. Remember Ohm's law (V = I*R): as resistance increases, voltage must increase to retain the same current. Electric motors are used in a variety of applications. Blowers, machine and power tools, fans, and pumps are common industrial applications. Motors are also used in tiny projects needing movement, such as robotics or modules with wheels. Types of motors: There are ma