Electronic Principles
What is a free electron?

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

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Electronic Principles
Which one of the following statements applies to common auto batteries?

Auto batteries are secondary wet-cell batteries
None of these
Auto batteries are secondary dry-cell batteries
Auto batteries are primary wet-cell batteries
Auto batteries are primary dry-cell batteries

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