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

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

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Electronic Principles
A low-pass filter:

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

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Electronic Principles
Voltage is

The number of free electrons in an atom
The flow of charged particles through a material
None of these
The smallest electrically charged particle
Trie force that causes electrons to flow

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Electronic Principles
What is a free electron?

An electron that has been freed from its parent atom
An electron that has twice the amount of charge of a normal electron
An electron that costs nothing
An electron that has no electrical charge
None of these

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