DC Motor - The Smart Notes

Introduction to DC Motor

A **DC Motor (Direct Current Motor)** is an electrical machine that converts electrical energy into mechanical motion. It operates based on the principle of **electromagnetic induction**, where a magnetic field interacts with a current-carrying conductor to produce motion. DC motors are widely used in industrial automation, robotics, automotive applications, and home appliances due to their efficiency and speed control.

Types of DC Motors

Working Principle of DC Motor

A DC motor works on **Faraday’s Law of Electromagnetic Induction**. When an electric current passes through the armature winding, it creates a magnetic field that interacts with the field magnet, generating torque that rotates the motor shaft. The direction of rotation follows **Fleming’s Left-Hand Rule**, where the interaction between the current, magnetic field, and force determines motion.

Applications of DC Motors

DC Motors are widely used in various industries and everyday devices:

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