Biomedical Engineering > GATE 2023 > Measurement and Instrumentation
A 20 mV DC signal has been superimposed with a 10 mV RMS band-limited Gaussian noise with a flat spectrum up to 5 kHz. If an integrating voltmeter is used to measure this DC signal, what is the minimum averaging time (in seconds) required to yield a 99% accurate result with 95% certainty?
Correct : d
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