Electronic Principles
When a parallel RLC circuit is operating at its resonant frequency:

None of these
inductive reactance is equal to the capacitive reactance
inductive reactance is greater than the capacitive reactance
capacitive reactance is greater than the inductive reactance
the difference between inductive and capacitive reactance is equal to the resistance

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

The total voltage lags the total current by less than 90
The total voltage is equal to the sum of the voltages across the resistance and inductance
None of these
The total voltages is less than the sum of the voltages across the resistance and inductance
The voltage always has the same amplitude and phase for every part of the circuit

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Electronic Principles
A high-pass filter:

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

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