Electronic Principles
Current is

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

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Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

peak the current and round off the voltage waveforms
None of these
round off both the voltage and current waveforms
peak both the voltage and current waveforms
peak the voltage and round off the current waveforms

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Electronic Principles
The peak value of a sine waveform is:

None of these
the maximum positive or negative value
the amplitude at 70.7% of the maximum value
the amplitude at 1.41 times the maximum value
the amplitude at 90% of the maximum value

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