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

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

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Electronic Principles
Which one of the following phrases most accurately describes a purely capacitive circuit?

Capacitive reactance provides the only opposition to current flow
Resistances provide the only opposition to current flow
Combinations of resistance and capacitive reactance provide any opposition to current flow
None of these
The ac voltage leads the current by 90 degree

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