I need help with this problem I already have the answer prac

Problem 5 Passive Filters (10 points (normal heart An ECG must be capable the periodic signals produced by the heart environment rate is of detecting lectrical 72 beats/min) whose frequency l Hz, lt must operate in an e where there is sinusoidal noise with frequency of so Hz. and pass the signals related to if a filter was designed to eliminate or reduce any noise above 8 Hz the heart, ect pass D is the filter type? Please circle High-pass nd-pass Band below.

Solution

Since you want to allow frequencies lower than 8Hz it tells us that it should pass frequencies less than 8Hz hence low pass filter.

Had the question said it should allow frequencies higher than 8Hz, the you would require a High pass filter.

If the question asked you to design a filter to allow only a particular set of frequencies it should be a band pass filter.

and the opposite of it is band reject filter.