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Coil Core Correlation
Aug 10, 2018

The inductance of the coil is related to whether there is a magnetic core or not. It can increase inductance and improve the quality of the coil by inserting ferrite core into the hollow coil.

Copper core coil: copper core coil is widely used in the ultra-short wave range. The position of the rotating copper core in the coil is used to change the inductance.