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 attract; unlike poles repel
Like magnetic poles repel; unlike poles attract
Current is induced in a conductor that is moving through a magnetic field

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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

None of these
The voltage reverses polarity periodically
The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
The voltage causes current to flow in two directions at the same time

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