Electronic Principles
The north pole of a magnet is the one:

that would be attracted to the earth's north magnetic pole
that would be attracted to the earth's south magnetic pole
that has its molecules arranged in a random pattern
that would be repelled by the south pole of another magnet
None of these

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Electronic Principles
Which one of the following principles best describes the basic operation of an electromagnet?

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

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