Electronic Principles
What are the main parts of an atom?

Protons only
Electrons, protons, and neutrons
Electrons, ions, and neutrons
None of these
Electrons, protons, and ions

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Electronic Principles
Molecule is

None of these
A atom that has a shortage of electrons in its outer orbit
A atom that has an excessive number of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance
A atom that flows whenever there is an imbalance of electrical charges between two points

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Electronic Principles
A low-pass filter:

passes lower-frequency signals and reduces higher-frequency signals
None of these
has no effect on ac signals
passes higher-frequency signals and reduces lower-frequency signals
reduces the level of all frequencies by a significant amount

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