1. The spark plug and magnet ignite according to the principle of electromagnetic induction: a conductor placed in a changing magnetic flux will generate an electromotive force. This electromotive force is called induced emf or induced emf. If the conductor is closed in a loop, the electromotive force will cause the electrons to flow, forming an induced current.
2. Specific principle: When the spark plug conductor cuts the magnetic lines of force, it generates current, which means it can emit light 'electricity. This is their physical characteristic. The conductor (wire) must be in the magnet. Move (turn) between them.
Spark plugs, commonly called burners. The function of the spark plug is to discharge the pulsed high voltage electricity sent by the high voltage wire (burner wire), decompose the air between the two electrodes of the spark plug ande generate an electric spark to ignite the mixed gas in the cylinder. The main types are: quasi type spark plugs, protruding rim spark plugs, electrode type spark plugs, seat type spark plugs, pole type spark plugs, surface flash type spark plugs, etc. The spark plug cooperates with the ignition system and the fuel system to operate the engine and together determines the performance of the engine to a large extent.