Question

Universal motor is used in .

• A. Hair dryer
• B. Room cooler
• C. Lathe machine
• D. Refrigerator

Answer 1

The Correct Option is A

A universal motor is an electric motor designed to function with both AC and DC power sources. Its lightweight, compact design and ability to achieve very high rotational speeds make it suitable for portable domestic appliances.
Hair Dryer: Employs a universal motor for its rapid rotation capability, essential for quick airflow and heat generation.
Room Cooler, Refrigerator: These appliances utilize induction motors due to their quieter operation and superior energy efficiency for sustained use.
Lathe Machine: Typically employs more robust motor types, such as DC shunt or induction motors, to meet torque demands.Therefore, the correct selection is (A) Hair dryer.