Electronic Principles
The north pole of a magnet is the one:

that would be attracted to the earth's north magnetic pole
None of these
that would be attracted to the earth's south magnetic pole
that has its molecules arranged in a random pattern
that would be repelled by the south pole of another magnet

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

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

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

Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
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
None of these
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

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