Low pass filter

  • Thread starter blair321
  • Start date
  • #1
17
0
hi there

if anyone could help i would be very grateful

for a low pass filter

from the following list choose the two components which would produce a cut off frequency closest to 100 khz

resistor capacitor
1.6 k ohm 1 nf
33 k ohm 330 nf
150 k ohm 10 uf

formula being fc = 1 / 2pi * r * c

its the exact values for nf and uf that are posing the prob
 

Answers and Replies

  • #2
13
0
1.6k and 1 nf
 
  • #3
13
0
nf = 10 to the ninth
uf = 10 to the sixth
 
  • #4
17
0
many thanks
 
  • #5
chroot
Staff Emeritus
Science Advisor
Gold Member
10,239
39
Originally posted by MaxMoon
nf = 10 to the ninth
uf = 10 to the sixth
I think you forgot some minus signs in there.

- Warren
 
  • #6
13
0
Guess I did.
 

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