Electronic Principles
A high-pass filter:

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

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Electronic Principles
Which one of the following statements is true for the currents in a parallel RC circuit?

None of these
The total current is less than the sum of the currents for the resistance and capacitance
The total current is equal to the sum of the currents for the resistance and capacitance
The total current. is greater than the sum of the currents for the resistance and capacitance
The current always has the same amplitude and phase for every part of the circuit

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Electronic Principles
For a pure capacitor:

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

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