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

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

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

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

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