Electronic Principles
Waveforms are graphs that show:

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

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Electronic Principles
What is a negative ion?

An atom that contains more electrons than neutrons
None of these
An atom that contains more protons than neutrons
An atom that contains more electrons than protons
An atom that contains more protons than electrons

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Electronic Principles
Which one of the following statements best applies to a series RLC circuit?

The voltage waveform for each component always has the same amplitude and phase as the applied voltage
None of these
The current waveform for each component always has the same amplitude and phase as the applied current
The sum of the current is always less than the applied current
All of these

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