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

None of these
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
An insulator allows current to flow much easier than a conductor does
The difference between conductors and insulators depends on how they are used

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a positive charge and a proton has no charge
An electron has a positive charge and a proton has a negative charge
An electron has a negative charge and a proton has a positive charge
None of these
An electron has a negative charge and a proton has no charge

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