Electronic Principles
The rms value of a sine waveform is:

equal to 0.707 times the peak amplitude
the number of cycles completed in one second
None of these
the time required to complete one full cycle
equal to 1.41 times the peak amplitude

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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 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
None of these

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Electronic Principles
The total capacitive reactance of a parallel capacitor circuit is:

None of these
equal to the source voltage divided by total current
equal to the sum of the individual capacitive-reactance values
equal to the sum of the individual capacitance values
less than the capacitance value of the smallest capacitor

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