Electronic Principles
A low-pass filter:

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

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Electronic Principles
Which one of the following statements best applies to a series RLC circuit?

The sum of the current is always less than the applied current
The voltage waveform for each component always has the same amplitude and phase as the applied voltage
All of these
The current waveform for each component always has the same amplitude and phase as the applied current
None of these

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