Electronic Principles
The peak value of a sine waveform is:

None of these
the maximum positive or negative value
the amplitude at 70.7% of the maximum value
the amplitude at 1.41 times the maximum value
the amplitude at 90% of the maximum value

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Electronic Principles
A high-pass filter:

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

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