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

None of these
Like magnetic poles attract; unlike poles repel
Current flowing through a conductor generates a magnetic field
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 statements best describes magnetic hysteresis?

Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet
Hysteresis is most apparent when the core material is saturated
Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet
Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently
None of these

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