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

None of these
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 earths north magnetic pole
that would be attracted to the earth's south magnetic pole

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Electronic Principles
Which one of the following statements applies to common auto batteries?

None of these
Auto batteries are secondary wet-cell batteries
Auto batteries are secondary dry-cell batteries
Auto batteries are primary dry-cell batteries
Auto batteries are primary wet-cell batteries

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The amount of magnetic flux that is not confined to the core material of an electromagnet
The force of attraction between the poles of a permanent and temporary magnetic field
The circular magnetic field that surrounds a conductor carrying a current
None of these

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