Electronic Principles
A high-pass filter:

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

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

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

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