Electronic Principles
A high-pass filter:

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

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Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are primary dry-cell batteries
Common flashlight batteries are primary wet-cell batteries
Common flashlight batteries are secondary wet-cell batteries
None of these

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Electronic Principles
Waveforms are graphs that show:

amplitude on the vertical axis and the passage of time on the horizontal axis
the passage of time on the vertical axis and amplitude on the horizontal axis
None of these
frequency on the vertical axis and amplitude on the horizontal axis
amplitude on the vertical axis and frequency on the horizontal axis

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