Electronic Principles
Doubling the number of turns of wire in an inductor:

None of these
multiplies the value of inductance by two
multiplies the value of inductance by four
reduces the value of inductance by one-half
reduces the value of inductance by one-fourth

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Electronic Principles
For a pure capacitor:

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

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

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
The higher the amplitude of a waveform, the higher its frequency
None of these
The actual frequency of a sine waveform is 1.41 times the working frequency

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