Electronic Principles
Which one of the following statements most accurately applies to the frequency of a waveform?

The higher the amplitude of a waveform, the higher its frequency
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz
The longer the period of a waveform, the lower its frequency
None of these
The actual frequency of a sine waveform is 1.41 times the working frequency

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Electronic Principles
A high-pass filter:

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

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

The voltage always has the same amplitude and phase for every part of the circuit
The total voltages is less than the sum of the voltages across the resistance and inductance
The total voltage is equal to the sum of the voltages across the resistance and inductance
The total voltage lags the total current by less than 90
None of these

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