Electronic Principles
The rms value of a sine waveform is:

the number of cycles completed in one second
the time required to complete one full cycle
equal to 0.707 times the peak amplitude
None of these
equal to 1.41 times the peak amplitude

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Electronic Principles
A high-pass filter:

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

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Electronic Principles
Which one of the following statements is true for resistance in a parallel circuit?

The total resistance of a parallel circuit is always less than the value of the smallest resistance
The total resistance is equal to the sum of the individual resistances in a parallel circuit.
The total resistance of a parallel circuit is equal to the total voltage
None of these
The total resistance in a parallel circuit is equal to the average value of the individual resistances

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