Electronic Principles
For a pure capacitor:

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

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Electronic Principles
Which one of the following is a direct statement of Ohm's law?

The algebraic sum of currents entering and leaving a point is equal to zero
The total resistance of a parallel circuit is less than the value of the smallest resistance
The algebraic sum of voltages in a loop is equal to zero
None of these
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it

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

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

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Electronic Principles
Which one of the following statements best applies to a parallel RLC circuit?

The voltage waveform for each component always has the same amplitude and phase as the applied voltage
None of these
The sum of the current is always less than the applied current
The current waveform for each component always has the same amplitude and phase as the applied current
All of these

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