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An inductor is used in electrical and electronic circuits for several important reasons:
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- Energy Storage – It stores energy in the form of a magnetic field when current flows through it. This makes it useful in power supplies, transformers, and energy transfer applications.
- Filtering and Smoothing – Inductors are used in filters (such as LC filters) to smooth out fluctuations in current, especially in power supplies and signal processing.
- Choking High-Frequency Signals – Inductors block AC signals and allow DC to pass. This property is used in chokes and filters to eliminate unwanted noise in circuits.
- Inductive Reactance (Opposing Current Change) – Inductors resist changes in current, which helps in current regulation and surge protection.
- Transformers – Inductors are a key component of transformers, which are used for voltage conversion in power distribution.
- Oscillators and Tuned Circuits – Inductors are used in LC circuits for frequency selection in radio tuners, oscillators, and RF circuits.
- Inductive Sensing – They are used in metal detectors, proximity sensors, and wireless charging applications.
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