Electronic Principles
Which one of the following statements is true for the impedance of a series RC circuit?

The impedance is greater than either the resistance or capacitive reactance but less than their sum
None of these
The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is less than the sum of the resistance and capacitive reactance
The impedance is equal to the sum of the resistance and capacitive reactance

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Electronic Principles
Waveforms are graphs that show:

None of these
the passage of time on the vertical axis and amplitude on the horizontal axis
frequency on the vertical axis and amplitude on the horizontal axis
amplitude on the vertical axis and the passage of time on the horizontal axis
amplitude on the vertical axis and frequency on the horizontal axis

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

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

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Electronic Principles
The total inductance of a series inductor circuit is:

equal to the source voltage divided by total current
None of these
less than the value of the smallest inductor
equal to the sum of the individual inductive-reactance values
equal to the sum of the individual inductance values

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