Resonance

windozeuser

Member

• Nov 14, 2006

• #1

I'm currently experimenting with Resonance and LCR circuits. Below is a circuit I'm playing around in with MultiSIM


Am I correct in that it will reach resonance at 130Hz?

**broken link removed**

 

C

Comcat

New Member

• Nov 14, 2006

• #2

I believe it will be resonant at 129949Hz.

F(resonance) = 1/2pi((LC)^0.5)

NoteLC)^0.5 is another way of stating square root of LC.
Using this forum, I didn't know of a way to show a radical sign.

 

Sceadwian

Banned

• Nov 14, 2006

• #3

I'm not sure what the calculation is (not a math guy) but I simulated the circuit in ltspice and the resonance frequency peeked at around 100-120hz and dropped off after 130hz or so.

 

C

Comcat

New Member

• Nov 14, 2006

• #4

Sorry about that Windozeuser.
I calculated using a 10 pF instead of a 10uF capacitor.
130Hz is correct.

 

windozeuser

Member

• Nov 14, 2006

• #5

no problem, thank you all

 

audioguru

Well-Known Member

Most Helpful Member

• Nov 14, 2006

• #6

10pF is nearly nothing. It is the capacitance between two small wires. One wire is in your house and the other wire is in my house.