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

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

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
causing an ac phase shift greater than 90 degree
storing 1 V for 1 second
dissipating 1 W of power
None of these

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Electronic Principles
The total capacitive reactance of a parallel capacitor circuit is:

equal to the sum of the individual capacitive-reactance values
equal to the source voltage divided by total current
less than the capacitance value of the smallest capacitor
None of these
equal to the sum of the individual capacitance values

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Electronic Principles
For a pure capacitor:

ac current is converted to dc voltage
None of these
ac current leads the voltage by 90 degree
ac current lags the voltage by 90 degree
ac current and voltage are exactly in phase

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