What is a passive device in a car?

A passive device in a car refers to a component or system that does not require any external power source to operate. These devices typically function automatically based on specific inputs or conditions within the vehicle.

One common example of a passive device in a car is a seatbelt. Seatbelts are designed to automatically engage and secure the occupant in the event of a sudden stop or collision. They do not require any manual activation and operate solely based on the movement and force experienced during a crash.

Another example of a passive device in a car is the airbag system. Airbags are designed to deploy automatically upon detecting a high-impact collision. They use sensors to determine the severity of the crash and inflate within milliseconds to provide cushioning and protection to the occupants.

Passive devices play a crucial role in enhancing the safety and convenience of modern vehicles by providing automatic responses to various driving conditions and emergencies. They are designed to operate seamlessly and effectively without requiring any input from the driver or occupants.