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

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

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

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