Help Needed: Low Pass Filter Cutoff Frequency Closest to 100 kHz

In summary, a low pass filter is an electronic filter that allows low frequency signals to pass through while attenuating high frequency signals. The cutoff frequency of a low pass filter is important because it determines when high frequency signals will start to be attenuated. When the cutoff frequency is closest to 100 kHz, it means the filter will start to attenuate signals at that frequency. The cutoff frequency is determined by the values of its components and can be adjusted. Some common applications of a low pass filter include removing noise in audio systems, improving signal quality in telecommunication systems, and eliminating interference in power supply circuits.
  • #1
blair321
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
 
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  • #2
1.6k and 1 nf
 
  • #3
nf = 10 to the ninth
uf = 10 to the sixth
 
  • #4
many thanks
 
  • #5
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
Guess I did.
 

1. What is a low pass filter?

A low pass filter is a type of electronic filter that allows low frequency signals to pass through while attenuating or blocking high frequency signals.

2. Why is a low pass filter cutoff frequency important?

The cutoff frequency of a low pass filter determines the point at which the filter starts to attenuate high frequency signals. It is important because it affects the overall performance and functionality of the filter.

3. What does it mean for the cutoff frequency to be closest to 100 kHz?

When the cutoff frequency of a low pass filter is closest to 100 kHz, it means that the filter will start to attenuate high frequency signals at a frequency very close to 100 kHz.

4. How is the cutoff frequency of a low pass filter determined?

The cutoff frequency of a low pass filter is determined by the values of its components, such as resistors, capacitors, and inductors. These values can be adjusted to achieve a specific cutoff frequency.

5. What are some common applications of a low pass filter?

Low pass filters are commonly used in audio systems to remove high frequency noise, in telecommunication systems to improve signal quality, and in power supply circuits to eliminate high frequency interference.

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