The square wave of Figure 3.7c, with T = 1 ms, is passed through a lowpass filter

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The square wave of Figure 3.7c, with T = 1 ms, is passed through a lowpass filter that passes frequencies up to 8 kHz with no attenuation.

a. Find the power in the output waveform.

b. Assuming that at the filter input there is a thermal noise voltage with N0 = 0.1 mW/Hz, find the output signal-to-noise ratio in dB.

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