Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

Common flashlight batteries are primary dry-cell batteries
Common flashlight batteries are primary wet-cell batteries
None of these
Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are secondary wet-cell batteries

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Electronic Principles
The total capacitive reactance of a parallel capacitor circuit is:

None of these
less than the capacitance value of the smallest capacitor
equal to the sum of the individual capacitive-reactance values
equal to the source voltage divided by total current
equal to the sum of the individual capacitance values

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

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
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged
None of these

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