Electronic Principles
Current is

The number of free electrons in an atom
The flow of charged particles through a material
An imbalance of electrical charges
The force that causes electrons to flow
None of these

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Electronic Principles
What is a negative ion?

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

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Electronic Principles
Which one of the following statements is true for the voltage in a parallel RC circuit?

The total voltage is less than the sum of the voltages across the resistance and capacitance
The total voltage is equal to the sum of the voltages across the resistance and capacitance
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltage leads the total current by less than 90 degree

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Electronic Principles
Waveforms are graphs that show:

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
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

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