Using a resistor (R) and an capacitor (C) in
series with an AC voltage source, we can create a simple lowpass
filter. We by changing the R and C values, you can adjust what
frequencies get passed at, say, greater than half the original
voltage.
There is an illustration of the circuit
below.
Set the initial parameters of the circuit :
R =
ohms
C =
microFarads
frequency scale factor =
cycles/sec
Here are the equations we
will use ...
