Inductors are passive components that store energy in a magnetic field when electrical current flows through them. The main types of inductors include:
1. Air-Core Inductor:
Uses air as the core material, providing low inductance. It's suitable for high-frequency applications, such as in radio circuits.
2. Iron-Core Inductor:
Uses an iron core to increase inductance and store more energy. These are commonly used in low-frequency applications like power supplies and transformers.
3. Ferrite-Core Inductor:
Made of ferrite material, offering high inductance with low losses at high frequencies. It's used in RF circuits, power electronics, and signal filtering.
4. Toroidal Inductor:
Wound on a doughnut-shaped core (toroid), reducing electromagnetic interference. These inductors are efficient in power supplies and transformers.
5. Variable Inductor:
Allows inductance to be adjusted, used in tuning circuits, such as radio receivers.
Inductors are commonly used in filters, transformers, energy storage, and electromagnetic interference (EMI) suppression, playing a key role in managing current flow in AC circuits.
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