An RC filter is shown The filter resistance R is variable between 180 and 2200 and the filter capacitance is C 0 086 F At what frequency is the output amplitude equal to 1 2 times the input amplitude if R (a) 180 (b) 2200 (c) Is this a low pass or high pass filter Explain ...

The output amplitude is equal to the voltage across the capacitor so set V C ...

An RC filter is shown. The filter resistance R is variable between 180 and 2200

Question:

An RC filter is shown. The filter resistance R is variable between 180 Ω and 2200 Ω and the filter capacitance is C = 0.086 μ F. At what frequency is the output amplitude equal to 1/ √2 times the input amplitude if R =
(a) 180 Ω?
(b) 2200 Ω?
(c) Is this a low-pass or high-pass filter? Explain