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Inductors in Series and Parallel

inductors in series

Inductors in Series and Parallel

Inductors are passive electronic components that store energy in the form of magnetic fields. They can be used in a wide range of circuits, including LC and RLC circuits.

When inductors are connected in series, their individual inductance values add together. This is similar to the way resistances are added in parallel.

What is an Inductor?

An inductor is a passive electronic component that stores energy in the form of magnetic fields. It is often used to separate different frequencies and work as an electronic filter when combined with capacitors.

Inductors can be found in almost every electronic circuit. They have special properties that make them stand out from other components like resistors and diodes. One of the main reasons they are so interesting is that they create an electromagnetic field when current passes through them. This magnetic field has a polarity and can be described using Lenz’s law.

When the inductor’s current changes, it induces display link manager an EMF in the surrounding circuit, whose magnitude is directly proportional to the rate of change in current. This EMF is called the induced voltage and it is used to support the changing current in the inductor.

There are several different types of inductors, but most of them have a ferrite core to increase their magnetic field. This allows higher levels of direct current to pass through them without losing too much energy. Some inductors also have air gaps in their cores, which eliminates iron losses and increases the efficiency of the inductor. These inductors are often used in AC inputs, power supply devices and to reduce EMI noise. If you need to calculate the total inductance of a series circuit, our Inductors In Series Calculator is a good place to start.

Induced Voltage

Inductors store energy as magnetic fields, and when current flows through them they produce a secondary voltage known as the induced voltage. The induced voltage opposes any changes in the rate of change of current flowing through it and is proportional to the amplitude of the AC current. This makes them suitable for use in circuits that require steady currents such as power supplies and electrical transmission lines.

An inductor is a passive component consisting of a coil of conducting wire with several turns. The number of turns determines the inductance value, which is expressed in Henrys (H). It may be hollow or have a solid inner core or a soft ferrite bead. It is often used to suppress electronic noise in computer power cords as well as in radio transmitters.

Inductors can be connected in series, parallel, or cumulatively coupled. The series configuration allows the individual inductances to add together while the parallel connection means that current passes through each inductor coil in the same direction. When inductors are connected in a cumulatively coupled series circuit they share the magnetic flux linkage between each other, which increases their total inductance. However, when inductors are connected in a differentially coupled series circuit, they will have opposite effects on each other. Their total inductance will decrease because the flux linkage between their coils is different due to the difference in their polarity.


The magnetic field produced by an inductor is related to its inductance. The more inductance an inductor has, the stronger its magnetic field. When inductors are connected in series, they produce their own magnetic field that links them together. Depending on the distance between inductors, this linkage can either be mutual or series aiding. When inductors are connected in parallel, they don’t produce any mutual inductance but do have their own inductance which can be different from the sum of their individual inductances.

The formula for the self-inductance of a coil is proportional to the number of turns in the coil and the rate of change of current passing through it. This means that as the current passes through the inductor’s coil and the frequency of the current changes, a voltage is induced across the inductor.

This induced voltage causes energy to be stored within the inductor’s magnetic field. This energy is released when the current stops flowing through the coil, causing the magnetic field to collapse.

This is why you should always have a diode in reverse across the coil of an inductor, to prevent the high voltages and sparks that can occur when current stops flowing. This is also why you shouldn’t put any other devices in reverse across the coil of an inductor – it will create their own sparks and voltages that can damage them.

Mutual Inductance

If you connect a number of inductors together in series then they will produce an equivalent total inductance. This is similar to how when a number of resistors are connected in series the total resistance of the circuit will be equal to the sum of all the individual resistor values added together.

When coils of wire in an inductor are close together they link with each other by magnetic flux passing between them. This linking can be in Operational Amplifier the same or opposite direction depending on how the coils are physically arranged and how they are connected to each other.

Adding more inductors in a series connection increases the total inductance of the combination as the current has to pass through each inductor. However the actual current that passes through each inductor will vary due to its own inductance and how it is connected to the rest of the circuit.

The magnetic coupling between two inductors connected in series can either increase or decrease the total inductance of the coils depending on their physical arrangement and the direction of current flow. For example, if the inductors are arranged so that their magnetic fields aid each other then they are said to be Cumulatively Coupled. On the other hand, if the inductors are positioned so that their magnetic fields oppose each other then they are said to be Differentially Coupled.