Description: Motors are devices that help to convert electrical energy into mechanical energy. Approximately 50% of the global power is used to drive motors. They are used in cars that use petrol engine to run them. Others run the mirrors, wipers, and windows. In electric trains, the motors run two set of wheels that help to propel the train at high speed. The electric motors operate through rotor coils designed with copper. The conductors are wound onto an armature so that they can turn when current flows through them. The motors also have permanent magnets that produce steady magnetic fields that help to turn the coil when current runs through. Note that some motors operate with electromagnets instead of permanent magnets. Other components of motors include commutators located at the end of each coin to help swap contacts after every half turn. They also feature brushes made of carbon and steel formers. The main types of motors include: 1. Brush motors: This category of motors has the largest numbers of motors in the market. The motors are also referred to as DC motors because the motor rotation is achieved via current switching when brushes (electrode) contact a commutator on the armature side. 2. Brushless motors: These are the types of motors that operate by switching current via an element such as a transistor as opposed to a commutator and brush. 3. The stepper motors: These motors operate in sync with pulse power (pulse motor). They are preferred for their easy and accurate positioning. 4. Induction motors: In this category of motors, the rotor motion is achieved through the creation of a rotating magnetic field from an alternating current source. 5. Synchronous motors: These motors operate by pulling the rotor pole with a rotational magnetic field created by an alternating current source. The operating speed of the motor is synchronized to the power supply frequency.