Electronic Principles
What is the difference between a conductor and an insulator?

A conductor allows current to flow much easier than an insulator does
An insulator allows current to flow much easier than a conductor does
The difference between conductors and insulators depends on how they are used
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
None of these

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Electronic Principles
Which one of the following statements is true for the impedance of a series RC circuit?

The impedance is greater than either the resistance or capacitive reactance but less than their sum
The impedance is less than the sum of the resistance and capacitive reactance
None of these
The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is equal to the sum of the resistance and capacitive reactance

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Electronic Principles
The period of a waveform is:

equal to 0.707 times the peak amplitude
the number of cycles completed in one second
the time required to complete one full cycle
the time required for the voltage to rise from 10% to 90% of the peak amplitude
None of these

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

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

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