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Passive RC High Pass Filter

First order HPF, frequency response, phase shift.

Mohith N
Updated: 19 March 2026
10 min read

Passive RC High Pass

Test your understanding of first-order HPF frequency response, phase shift, and cutoff frequency calculations.

Question 1 of 3

Q1.The transfer function of a first-order passive RC high-pass filter is H(jw) = jw/(jw + wc) where wc = 1/RC. At very high frequencies (w >> wc), the magnitude |H(jw)| approaches: