Inductors: Coils That Control Current Flow

An inductor is a coil of wire that resists changes in electric current.
When current flows, it creates a magnetic field around the coil.
If the current changes, the collapsing magnetic field pushes back with a voltage.
This property is called inductance, measured in henrys (H).
Inductors smooth out spikes and fluctuations in circuits, like shock absorbers for electricity.
They are key components in transformers, radios, and power supplies.
The more loops in the coil or the bigger its core, the stronger the inductance.
Inductors store energy in magnetic fields, unlike capacitors that store it in electric fields.
High-frequency signals are blocked by inductors, making them useful in filters.
From wireless chargers to electric motors, inductors quietly shape how electricity flows.