Resonance ain’t no thing but a chicken wing!

I hope that this explanation RESONATES with you.

Resonance is a term that sounds more complex than it is.

It is fun to impress the opposite sex with these terms but in the electrical world it is really quite simple.

OK so what is resonance?

Well, I am glad you asked.

There are two ways we need to look at resonance.

In this tutorial we will focus on series circuit resonance.  Parallel circuit resonance will be covered in a future tutorial.

Series resonance explained simply at its core resonance is just this:

XL = XC

At this point we see that the inductive reactance and the capacitive reactance in the circuit cancel each other out (They are opposites).

At this point your current is only limited by the resistance of the circuit.
resonance, series, RLC

In the above circuit the Xnet= 30 – 30, or 0.

This means that in a series resonant circuit your Impedance is equal to your resistance (Z = R)

Vectors, resonance, series, ac

Now that we have nothing but the resistance opposing current we can also say that:

          In a resonant series circuit the current is at its maximum.

Seriously that’s all folks.

See it isn’t too complicated so calm down!

In the next tutorial we are going to talk about how there is only one frequency that will allow this circuit to be in resonance.

But that is another story for another day.

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