Filter are used to find some specific information from list ?
Added by Angelica R.
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What is a filter? A filter is a tool or function that allows you to extract specific information from a larger set of data. Show more…
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A filter is a circuit designed to pass AC signals in some frequency range and to attenuate others. Common filters include low-pass filters, which allow low-frequency signals to pass but attenuate high frequencies; high-pass filters, which do the opposite; and band-pass filters, which pass a range of frequencies while attenuating signals with frequencies outside the band. Filters are widely used in electronics. Applications include tone and equalizer controls in audio equipment; filters to separate nearby frequencies at cell phone towers; and filters to eliminate unwanted electrical noise in biomedical instruments such as electrocardiographs. A simple design for an $R C$ filter is shown in Fig. 28.27 FIGURE CANT COPY The circuit shown in Fig. 28.27 is a. a low-pass filter. b. a high-pass filter. c. a band-pass filter. d. impossible to tell without knowing the component values.
A filter is a circuit designed to pass AC signals in some frequency range and to attenuate others. Common filters include low-pass filters, which allow low-frequency signals to pass but attenuate high frequencies; high-pass filters, which do the opposite; and band-pass filters, which pass a range of frequencies while attenuating signals with frequencies outside the band. Filters are widely used in electronics. Applications include tone and equalizer controls in audio equipment; filters to separate nearby frequencies at cell phone towers; and filters to eliminate unwanted electrical noise in biomedical instruments such as electrocardiographs. A simple design for an $R C$ filter is shown in Fig. 28.27 FIGURE CANT COPY When the angular frequency $\omega$ of the input voltage $V_{\text {in }}$ is such that the capacitor's reactance is equal to the resistance, the output voltage is a. $V_{\text {in }} / 4$ b. $V_{\text {in }} / 2$ c. $V_{\text {in }} / \sqrt{2}$ d. $2 V_{\text {in. }}$
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