Can the horn be sounded after the car is turned off?

[DiEmerson]

Car horn can still sound after the engine is turned off. Relevant information: Car horn: The horn is the audio signal device of a car. During driving, the driver emits necessary audio signals as needed and regulations to warn pedestrians and attract attention from other vehicles, ensuring traffic safety, while also being used for urging and transmitting signals. Working principle: The car electric horn produces sound through the vibration of a metal diaphragm. The car electric horn consists of an iron core, magnetic coil, contacts, armature, diaphragm, etc. When the driver presses the horn switch, current passes through the contacts to the coil, which generates magnetic force to pull down the armature, forcing the diaphragm to move. The movement of the armature causes the contacts to open, interrupting the current and causing the coil's magnetic force to disappear. The diaphragm, under its own elasticity and the action of the spring plate, returns to its original position along with the armature, the contacts close the circuit again, current flows through the contacts to the coil to generate magnetic force, repeating the above action.