Electronic Principles
What is a free electron?

An electron that has twice the amount of charge of a normal electron
An electron that has no electrical charge
An electron that costs nothing
None of these
An electron that has been freed from its parent atom

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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
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
None of these
A conductor allows current to flow much easier than an insulator does

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