Electrical FE /EIT Exam Prep - Signal Processing 1: Low Pass Filter - Cutoff 3dB Frequency

[@taylormajors2004]

Maybe something obvious but can you explain how you get from the final equation to 53.05s. i get 5.305E-5. assuming a conversion error but can't seem to find the mistake

[@EngineeringEducation]

Hi Taylor, this was read from the calculator incorrectly. The answer is indeed 53 microseconds. The video descriptions will include any errors found in the videos.

[@mc7685]

Don't you need to convert time period which is in milli seconds to seconds? If you do then you get 53 seconds.

[@airbender9593]

How do you proof that Rp=R1*R2/(R1+R2) as Rp=R1? I am just a conceptual learner.

[@AndrewKiethBoggs]

Since we only have one resistor, resistance is just R1. Rp is the parallel resistance between R1 and R2 given by (R1*R2)/(R1+R2) Hope this helps

[@airbender9593]

@@AndrewKiethBoggs It has been 5 months ago. I recall that it took me a couple of days to watch through the entire videos quickly. This is not part of my review regime and going to be taking the actual exam soon but thanks anyway.

[@airbender9593]

@@AndrewKiethBoggs Also, I just pass on my first try. :)

[@AndrewKiethBoggs]

@@airbender9593 hey air bender, been seeing you on every video. Great job! Glad you passed. Hopefully I can do the same.

[@airbender9593]

@@AndrewKiethBoggs Thank you. You got this, Andrew. I graduated 15 years ago and pass the exam on my first attempt. So, if I can do it, you can do it.