What is the role of inductance
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The characteristics of the inductor are the opposite of the characteristics of the capacitor, which has the property of preventing the passage of the alternating current and allowing the direct current to pass smoothly. The characteristics of the inductor are DC and AC, and the higher the frequency, the greater the coil impedance. Inductors often work with capacitors in circuits to form LC filters, LC oscillators, etc. In addition, people also make use of the characteristics of inductance to manufacture choke coils, transformers, relays and so on.
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The role of inductance: through DC, AC
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Through DC: The so-called through DC means that in the direct current circuit, the role of the inductor is equivalent to a wire, without any effect.
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Ac resistance: In an AC circuit, the inductor will have an impedance, that is, XL, and the current of the entire circuit will become smaller, which has a certain hindering effect on AC