1. Using the impedance method, find an expression (Vc A(w) sin(wt + p)) for the voltage across the capacitor. Plot the transfer function A(w) and the phase o as a function of the input frequency (complete the following plots). = 2. Denote the break-frequency and slope of the transfer function. 3. What type of filter is this, and why? (low pass, bandpass, high pass, or band stop?) 4. What if we replace the position of the resistor and the capacitor? What type of filter then this would be?

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Filter

A filter is a device or process which removes some of the unwanted features or components like frequencies from a signal in signal processing. The feature of filters is the complete or partial suppression of some part of the signal, and filtering is a class of signal processing. This most often means removing some frequency bands or some frequencies. In the frequency domain, the filters do not exclusively act, especially in the image processing field many other targets for filtering exist. Without having to act in the frequency domain, the correlations can be removed for certain frequency components and not for others. The filters are widely used in electronics and telecommunication, in television, radio, radar, audio recording, music synthesis, control systems, computer graphics, and image processing.