# Resonant frequency formula manipulation.

Discussion in 'General Electronics Chat' started by arthur92710, Dec 1, 2007.

1. ### arthur92710 Thread Starter Active Member

Jun 25, 2007
307
1

If i know L F and Pi(its a blueberry pi) how do I find C?

2. ### hgmjr Moderator

Jan 28, 2005
9,030
214
You have all of the variables in hand except the one you want to calculate. It should be a simple algebra problem from there.

hgmjr

3. ### arthur92710 Thread Starter Active Member

Jun 25, 2007
307
1
So would it be (f*2pi)^2 =1
.........................L ......=C

But how do i get rid of the 1 over the c?

Should i just use the reciprical of both side?

......L .....=..C
(f*2pi)^2

Right?

4. ### mozikluv AAC Fanatic!

Jan 22, 2004
1,437
1
am about to give you the correct formula, but i guess it won't help. why dont you put reasonable values on the original formula and work your way backwards and see if you get the correct values thru your reformulation.

5. ### hgmjr Moderator

Jan 28, 2005
9,030
214
More like this:

$C=\frac{1}{L(2\pi f)^{2}}$

hgmjr

6. ### cheddy Active Member

Oct 19, 2007
87
0
1/x=1/y

multiply both sides by x*y

x=y

7. ### arthur92710 Thread Starter Active Member

Jun 25, 2007
307
1
well thanks...