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

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
None of these

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Electronic Principles
The south pole of a magnet is the one:

that would be attracted to the earth's south magnetic pole
None of these
that has its molecules arranged in a random pattern
that would be attracted to the earths north magnetic pole
that would be repelled by the north pole of another magnet

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Electronic Principles
A high-pass filter:

increases 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
passes higher-frequency signals and reduces lower-frequency signals

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