Electronic Principles
What is a negative ion?

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

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Electronic Principles
The period of a waveform is:

the number of cycles completed in one second
the time required to complete one full cycle
None of these
the time required for the voltage to rise from 10% to 90% of the peak amplitude
equal to 0.707 times the peak amplitude

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