Final answer:
DC motors are used in electric vehicles for propulsion, in industrial machinery for controlled operation and high torque, and in household appliances for reliability and variable speed.
Step-by-step explanation:
DC motors have various applications due to their ability to convert electrical energy into mechanical work. Here are three common uses:
- Electric Vehicles: In electric cars, DC motors propel the vehicle by converting the stored electrical energy from the batteries into mechanical motion. This makes them a key component in modern transportation solutions focused on sustainability.
- Industrial Machinery: DC motors are widely used in industrial settings for machinery such as conveyor belts, hoists, and lathes. They offer fine speed control and high starting torque, which are essential for many manufacturing processes.
- Household Appliances: Many household appliances such as vacuum cleaners, hair dryers, and blenders use DC motors to operate. They are preferred for their reliability and ability to provide variable speed.
In all these applications, the principle of operation remains the same: currents passing through the motor's wire loops create a magnetic force, which generates torque on a shaft, thus causing rotation.