Why is the magnitude of the output relatively constant at all frequencies as sho

Question

Why is the magnitude of the output relatively constant at all frequencies as shown by the Bode Analyzer output? NOTE: A gain of -0.02 dB corresponds to a gain of 0.98

the first is an all pass phase lag the second is an all pass phase lead with in a LM741 op amp.

Ba Bode Analyzer NI ELVISmx LabVIEW Connections: AIO-A00 AI 1-Signal 0.2 0.1 0.0 -0.2 100 1000 10000 Frequency (Hz) 200.0 150.0 100.0 G 50.0 0.0 -50.0 100.0 150.0 200.0 1000 10000 Frequency (Hz) Frequency (Hz) 1000.00 Phase (deg) -146.13 Gain 1.01 Gain (dB) 0.09 Measurement settings Stimulus Channel Response Channel A11 AI 0 Start Frequency 100.00 Hz Stop Frequency 10.00k Hz Steps 25 (per decade) Op-Amp Peak Amplitude Signal Polarity Normal 2.00 Graph Settings Mapping V Autoscale Logarithmic Cursor Settings V Cursors On Position Cursor (Real) Left Right Instrument Control Device myDAQ1 ONI myDAQ) Run Stop Print Log Help

Explanation / Answer

in this given case, the value of gain is equal to one. due to this the values of input an output values will be same. therefore the values of output will be same at all the frequencies

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