Electro magnetic fields (EMFs) are electrical derivatives generated by electrical conductors and AC power sources. When the velocity of charged particles changes, EMF surrounds electronic devices. When charged electrons gain speed, they generate an electric current and ignite a magnetic field. In Hertz units, EMF promotes fast and convenient communication between wireless devices such as smartphones, mobile devices, and laptops. The electric field is generated by voltage difference: the higher the voltage, the stronger the composite field. Magnetic field: When current flows, the greater the current, the stronger the magnetic field. Even if there is no current flowing, there will still be an electric field. If there is current flowing through, the magnetic field strength will change with power consumption, but the electric field strength remains constant. EMF is for the purpose of ensuring personal safety. The purpose of EMF is to protect the central nervous system tissues of the human head and torso exposed to electromagnetic fields, reduce their adverse effects on the human body, and study the impact of electric and magnetic field noise emitted by electronic products on the human body
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