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The main purpose of an inductor is to store energy in a magnetic field when electrical current flows through it. Inductors resist changes in current and help smooth out or filter signals in circuits. They are commonly used in:
In simple terms, inductors resist sudden changes in the current and help manage the flow of electricity in a circuit.
- Energy storage: Inductors store energy temporarily in the form of a magnetic field when current flows through them.
- Filtering: In power supplies, inductors can filter out unwanted signals (like high-frequency noise) by allowing low-frequency currents to pass while blocking high-frequency ones.
- Inductive reactance: Inductors oppose changes in current flow (they have inductive reactance), which makes them useful for controlling the flow of alternating current (AC) in a circuit.
- Transformers and coils: In transformers, inductors are used to transfer electrical energy between circuits through magnetic fields.
In simple terms, inductors resist sudden changes in the current and help manage the flow of electricity in a circuit.