2 high-pass filters with different R and C values, discuss the differences

[liam1992]

You have two high-pass filters with different R and C values discuss the difference in the response.

Filter a) R=5kΩ C=250μf
Filter b) R=25kΩ C=50μf

I calculated that they have the same cut-off frequency but without actually testing the circuit on Multisim and connecting a bode plotter I don't know how to find any differences

 

[NewtonianAlch]

Just speculating here, but if the cut-off frequency were the same, shouldn't the response here be the same?

If not, then I assume any differences in response would be due to a transient response due to the different capacitances. Just speculation though.

 

[liam1992]

That's what I thought but the cut off frequency is proportional to 1/RC and the RC value for both circuits is the same. It could be transient response but I don't know much about it because we haven't been taught anything about it

 

[NascentOxygen]

Sketch each filter as a 2 port network, and label input and output.

➤ Consider input impedance.

 

[NascentOxygen]

Your subject say "discuss the differences", your post says "discuss the difference in the response".

What is the exact wording of the question?

 

[liam1992]

The question says discuss the differences in the response. It's alright now, the lecturer sent us an answer sheet and the answer was there is no differences, they are identical. I hate it when they do that.