Inductors (7)

Inductive Reactance

Inductive reactance is the property of an inductive coil that resists the change in alternating current (AC) through it and is similar to the opposition to direct current (DC) in a resistance. Thus far we have looked at the behaviour of inductors connected to DC supplies and hop...

LR Series Circuit

Inductive coils and solenoids are not purely inductive devices, but instead consist of an inductance and resistance connected together to form a basic LR series circuit. In the first tutorial in this section about Inductors, we looked briefly at the time constant of an inductor ...

Inductors in Parallel

The voltage drop across all of the inductors in parallel will be the same. Then, Inductors in Parallel have a Common Voltage across them and in our example below the voltage across the inductors is given as: VL1 = VL2 = VL3 = VAB ...etc   In th...

Inductors in Series

These interconnections of inductors produce more complex networks whose overall inductance is a combination of the individual inductors. However, there are certain rules for connecting inductors in series or parallel and these are based on the fact that no mutual inductance or ma...

Mutual Inductance

Mutual inductance is a circuit parameter between two magnetically coupled coils and defines the ratio of a time-varying magnetic flux created by one coil being induced into a neighbouring second coil. Previously we saw that an inductor generates a self-induced emf as a result of...

Inductance of a Coil

The inductance of a coil refers to the electrical property the inductive coil has to oppose any change in the current flowing through it. It therfore follows that inductance is only present in an electric circuit when the current is changing. Inductors generate a self-induced em...

The Inductor

In this tutorial we will see that the inductor is an electrical component used to introduce inductance into a circuit which opposes the change of current flow, both magnitude and direction, and that even a straight piece of conductive wire can have some amount of inductance in it...