The air core coil is one of the coils. The coil in the circuit is actually the inductance coil. It works on the principle of electromagnetic induction.
Mainly used in induction reception, focusing, magnetic card, magnetic head, large current coil, low voltage electrical appliances, industrial control, household appliances, automotive electronics, SMT mounting, mobile phones, wireless transceiver, electronic navigator, power regulator, amplifier, supplier and filter and other fields.
