What is the inductors and inductance

What is the inductors is that important in the electroic?

Inductor is coil. The inductance unit is in henry.

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What is Inductance?

Inductance (L),a coil of wire in resisting any changed of electric current through the coil

Inductance is a property of ?

Inductance is to Capacitance why current is to a stationary charge. They are both defined relative to the voltage produced