Electronic Principles
The rms value of a sine waveform is:

equal to 1.41 times the peak amplitude
equal to 0.707 times the peak amplitude
the number of cycles completed in one second
None of these
the time required to complete one full cycle

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Electronic Principles
A low-pass filter:

has no effect on ac signals
None of these
passes lower-frequency signals and reduces higher-frequency signals
passes higher-frequency signals and reduces lower-frequency signals
reduces the level of all frequencies by a significant amount

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