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

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

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Electronic Principles
What is a negative ion?

None of these
An atom that contains more electrons than protons
An atom that contains more protons than electrons
An atom that contains more protons than neutrons
An atom that contains more electrons than neutrons

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