Electronic Principles
Which one of the following kinds of materials has the lowest permeability?

A diamagnetic material
None of these
A paramagnetic material
A feiTomagnetic material
All 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
Like magnetic poles attract, while unlike poles repel
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

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