Electronic Principles
What form of energy is used to maintain an imbalance of charges between the terminals of a battery?

Chemical energy
None of these
Solar energy
Electronical energy
Mechanical energy

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Electronic Principles
What is a negative ion?

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

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