Electronic Principles
The total inductance of a series inductor circuit is:

None of these
equal to the sum of the individual inductance values
less than the value of the smallest inductor
equal to the sum of the individual inductive-reactance values
equal to the source voltage divided by total current

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Electronic Principles
What is the primary difference between primary and secondary cell batteries?

None of these
Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged
Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs
Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged

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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
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz
None of these
The actual frequency of a sine waveform is 1.41 times the working frequency
The higher the amplitude of a waveform, the higher its frequency

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