Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

None of these
Common flashlight batteries are secondary wet-cell batteries
Common flashlight batteries are primary wet-cell batteries
Common flashlight batteries are primary dry-cell batteries
Common flashlight batteries are secondary dry-cell batteries

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Electronic Principles
What is a free electron?

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

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