Inductive Resistors

Inductive Resistors

Inductive resistors are a type of electrical component that combines the properties of both resistors and inductors. These devices are designed to impede the flow of alternating current (AC) in a circuit, while also storing energy in the form of a magnetic field. Inductive resistors are commonly used in electronic circuits where both resistance and inductance are required, such as in filter circuits, power supplies, and audio amplifiers. The inductive properties of these resistors arise from the presence of a coil of wire wound around a core material, which can be made of a variety of materials such as ferrite, iron, or air. When an AC voltage is applied to the coil, a magnetic field is generated around the core, which induces a voltage that opposes the flow of current. This effect is known as inductance, and is measured in henries (H). The resistance of inductive resistors is determined by the material used for the wire and the length and thickness of the wire. The resistance is measured in ohms (Ω) and is proportional to the length of the wire and inversely proportional to its cross-sectional area. The resistance of the wire is added to the inductance of the coil to give the total impedance of the inductive resistor. Inductive resistors are used in a wide range of applications, including power supplies, audio amplifiers, and filter circuits. They are particularly useful in circuits where a high degree of filtering is required, as they can provide both resistance and inductance in a single component. They are also used in circuits where a high degree of precision is required, as they can be manufactured with very tight tolerances.

inductance, resistance, impedance, filter circuits, power supplies

— Daniel Wilson

CITATION : "Daniel Wilson. 'Inductive Resistors.' Design+Encyclopedia. https://design-encyclopedia.com/define/inductive-resistors?E=354711 (Accessed on October 14, 2026)"