Electronic Principles
The peak value of a sine waveform is:

None of these
the maximum positive or negative value
the amplitude at 90% of the maximum value
the amplitude at 70.7% of the maximum value
the amplitude at 1.41 times the maximum value

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

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

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
that would be attracted to the earths north magnetic pole
None of these

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Electronic Principles
Which one of the following statements is true?

None of these
All of these
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency
Power dissipation of a pure capacitor increases with operating frequency
Power dissipation of a pure capacitor decreases with operating frequency

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