Electronic Principles
What form of energy is used to maintain an imbalance of charges between the terminals of a battery?

None of these
Chemical energy
Solar energy
Electronical energy
Mechanical energy

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

The longer the period of a waveform, the lower its frequency
None of these
The higher the amplitude of a waveform, the higher its frequency
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

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