Electronic Principles
A high-pass filter:

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

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Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

Resistances provide the only opposition to current flow
Combinations of resistance and inductive reactance provide any opposition to current flow
The ac voltage lags the current by 90 degree
Inductive reactance provides the only opposition to current flow
None of these

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Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

None of these
peak the current and round off the voltage waveforms
round off both the voltage and current waveforms
peak the voltage and round off the current waveforms
peak both the voltage and current waveforms

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Electronic Principles
Which one of the following statements best applies to a parallel 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
None of these
The current waveform for each component always has the same amplitude and phase as the applied current

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