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

None of these
Solar energy
Mechanical energy
Chemical energy
Electronical energy

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Electronic Principles
Which one of the following principles best describes the basic operation of a generator?

Current flowing through a conductor generates a magnetic field
None of these
Like magnetic poles repel; unlike poles attract
Current is induced in a conductor that is moving through a magnetic field
Like magnetic poles attract; unlike poles repel

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