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

The actual frequency of a sine waveform is 1.41 times the working frequency
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz
None of these
The higher the amplitude of a waveform, the higher its 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
ac current and voltage are exactly in phase
None of these
ac current lags the voltage by 90 degree

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