INDUCTOR (L- PARAMETERS)

In general, inductors will have number of turns. Hence, they produce magnetic flux when current flows through it. So, the amount of total magnetic flux produced by an inductor depends on the current, I flowing through it and they have linear relationship. Mathematically, it can be written as

Where,

▪︎Ψ is the total magnetic flux

▪︎L is the inductance of an inductor

Let the current flowing through the inductor is I amperes and the voltage across it is V volts. The symbol of inductor along with current I and voltage V are shown in the following figure. 

According to Faraday’s law, the voltage across the inductor can be written as, 

Substitute Ψ = LI in the above equation.

From the above equations, we can conclude that there exists a linear relationship between voltage across inductor and current flowing through it.

We know that power in an electric circuit element can be represented as

By integrating the above equation, we will get the energy stored in an inductor as

So, the inductor stores the energy in the form of magnetic field.