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Fixed inductors are electronic components that are used to store electric energy in an electric field. They consist of two or three wires wrapped around a core or coil of metal such as iron or aluminum. The fixed inductor is an important component in many electrical and electronic circuits, especially in radio frequency and high frequencies. In the case of a radio frequency circuit, the inductor is used to tune the circuit to a particular frequency. Additionally, it acts as an electronic filter to allow certain frequencies to pass and block others.

The characteristic feature of a fixed inductor is the ability to store energy. This energy is stored as a magnetic field between the two or three wires. During the current flow, electrical energy is converted into magnetic energy which is then stored in the inductor’s core. This energy is then released when the current stops flowing. This action is known as inductance, and it is measured in Henrys. The higher the number of Henrys, the larger the inductor’s magnetic field.

A major application of the fixed inductor is in the field of radio frequency circuits. An inductor is combined with a capacitor and used to form a tuned circuit. The tuned circuit is used to select a particular frequency of radio signal. The inductor’s inductance determines the frequency range of the circuit. In this way, a radio can be tuned to a particular frequency.

Another important application of the inductor is in the field of digital circuits. In digital logic circuits, inductors are often used to provide power to the circuit. The inductance of the inductor determines the amount of power that is supplied by the circuit. This enables the circuit to power itself without the need for an external power source.

The most common type of fixed inductor is the air core inductor. As the name implies, the core of the inductor is composed of air, which acts as an insulator and prevents the leakage of current. Air core inductors are ideal for use in applications where high frequencies are required. However, they are also susceptible to energy losses due to the high frequency. As a result, other types of inductors such as ferrite core inductors are often used in applications where greater principles of inductance is required.

The working principle of fixed inductors is based on Faraday’s law of induction which states that an electric current produces a magnetic field. This magnetic field then produces a secondary electric voltage in the inductor’s windings. This voltage is then stored as magnetic energy, which is then released as an electric current when the current flow stops.

In conclusion, fixed inductors are essential components in a variety of electrical and electronic circuits. They contain two or three wires wrapped around a core or coil of metal such as iron or aluminum. They are able to store energy in a magnetic field, enabling them to act as inductors in radio frequency circuits and digital logic circuits. The working principle of a fixed inductor is based on Faraday’s law of induction.

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