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What is the Purpose of an Electric Motor?

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Electric motors are all around us. Though often out of sight, they are fundamental to modern life, powering everything from industrial machinery to home appliances. Have you ever wondered, at its essence, what is the purpose of the electric motor?

Basics of Electric Motors

An electric motor is a device used to convert electrical energy into mechanical energy. Its purpose is to generate motion using electromagnetic principles.

Electric motors consist of key components like the rotor, stator, commutator, brushes and power source. When current is applied to conductors in a magnetic field, a force and torque is produced, causing the motor to spin. This effect is known as electromagnetism.

What is an Electric Motor Used For?

Electric motors are found in a wide variety of industrial operations and appliances. They power things like conveyor systems, automatic doors, fans, air conditioners, refrigerators, washing machines and vehicles.

In industry, electric motors allow stable, constant delivery of goods using conveyor belts. Because they feature long lifespans, low maintenance needs and can be adapted to many purposes, motors are a clean, efficient alternative to fossil fuel engines.

By converting electrical energy into rotational mechanical motion, electric motors provide the driving force that allows a wide array of devices to operate. Whether you realize it or not, electric motors directly impact your everyday life whenever you use your refrigerator, vacuum cleaner, or power tools. They also indirectly affect you whenever you rely on mass transportation, factory-made goods, or electricity itself.

Key Components of How Electric Motors Function

DC electric motors use direct current and contain a stationary stator magnet, an axle and rotor coil which spins at high speeds providing power, a commutator to allow continuous rotation as well as brushes and a power source.

Three main components allow electric motors to generate motion: The field magnet on the stator, the rotating loop of wire or coil on the rotor, and the electric current which generates the force and torque needed for motion.

In order to sustain continuous movement, AC or DC current is applied and the direction of current flow is switched, providing consistent torque to turn the rotor.

The Purpose of an Electric Motor is to Generate Motion From Electricity

In summary, the purpose of electric motors is to convert electrical energy into mechanical rotational motion and power. Whether by powering industrial machines, household goods or vehicles, electric motors provide an efficient, clean and adaptable means to transmitting power through the use of electromagnetic principles and key components to produce force and sustain motion.


Electric motors shoulder the burden of physical labor in the modern world. Through innovative engineering and electromagnetic principles that have been understood for over a century, electric motors translate the flexibility and immediacy of electrical power into usable kinetic energy. Though taken for granted, society depends greatly on these electro-mechanical workhorses.

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