What are the applications of magnets in life About the application of magnets in life

1, electro-acoustic devices: cell phones, televisions, stereos, headphones and so on all the sound emitting speakers, this kind of speaker is a device to convert the electrical signal into an acoustic signal. Mainly consists of fixed permanent magnets, coils and conical paper cone. When the sound in the form of audio current through the coil in the speaker, the magnetic field produced by the magnet on the speaker will produce force on the coil, the coil will be due to changes in the strength of the current to produce a different frequency of vibration, which drives the paper cone to send out a different frequency and strength of the sound. The paper cone will vibrate through the air to spread out, so we hear the sound.

2, electronic devices: cell phones, tablet computers, such as dormant holsters.

3, bags holsters and many other items use magnets to adsorb and fix.

4, the medical field: the most commonly used nuclear magnetic **** vibration in the medical examination. Is the use of the body's own magnetic field and the instrument itself carries magnetic material, interaction, the formation of detection of manifestation, to help people see the cause of the lesion. Similarly in other medical treatment modalities, there are many traces of the application of magnets, such as acupuncture and magnetic therapy, magnetic sensory detector and so on.

5, motors, motors and other electrical energy and kinetic energy conversion devices.

6, life appliances, such as induction cookers, microwave ovens and other appliances, but also a large number of magnets.