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

None of these
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 actual frequency of a sine waveform is 1.41 times the working frequency
The longer the period of a waveform, the lower its frequency

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Electronic Principles
For a pure capacitor:

ac current is converted to dc voltage
ac current leads the voltage by 90 degree
None of these
ac current lags the voltage by 90 degree
ac current and voltage are exactly in phase

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a positive charge and a proton has no charge
None of these
An electron has a negative charge and a proton has no charge
An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has a negative charge

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Electronic Principles
The rms value of a sine waveform is:

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

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