Electronic Principles
What is a free electron?

None of these
An electron that has twice the amount of charge of a normal electron
An electron that costs nothing
An electron that has been freed from its parent atom
An electron that has no electrical charge

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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
None of these
The voltage causes current to flow in two directions at the same time
The voltage reverses polarity periodically

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Electronic Principles
Which one of the following statements is true?

None of these
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency
Power dissipation of a pure capacitor decreases with operating frequency
All of these
Power dissipation of a pure capacitor increases with operating frequency

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