Frequency Response of second order Active Filters            

Consider the following specifications and calculate the high cut-off frequency for the circuit given.

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How can a first order lowpass filter can be converted into second order low pass filter
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Find the gain and phase angle of the 2nd order low pass filter where, passband gain of the filter is 5.Frequency and high cut-off frequency of the filter are 3000Hz and 1KHz.
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The pass band voltage gain of a second order low pass butter worth filter is
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Frequency scaling is done using
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A second order low pass filter is given an input frequency of 30KHz and produce an output having phase angle of 79 degree.Determine the pass band gain of the filter.
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