What is the voltage of a car horn?

[DerekFitz]

The voltage of a car horn is 12V or 24V. Depending on the engine fuel type: The voltage of a car is divided into 12V or 24V based on the engine's fuel type. Gasoline-powered vehicles typically use a 12-volt parallel DC voltage, while diesel-powered vehicles usually employ a 24-volt DC parallel voltage. Introduction to car electric horns: Car electric horns produce sound through the vibration of a metal diaphragm. They consist of components such as an iron core, magnetic coil, contacts, armature, and diaphragm. When the horn button is pressed, current flows through the contacts to the coil, generating magnetic force that pulls down the armature and forces 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 then returns to its original position along with the armature due to its own elasticity and the spring plate's action, closing the contacts again and allowing current to flow through the coil to generate magnetic force once more.